ASSET PURCHASE AGREEMENT


     This Agreement is made as of May 16, 1996, by and among MERIS LABORATORIES,
INC., a  California  corporation  with  offices at 2890 Zanker  Road,  San Jose,
California  95134 (the  "Purchaser"),  and ROCEL Clinical  Diagnostics,  Inc., a
California  corporation  (the  "Seller") with offices at 2470 Alvin Ave. #7, San
Jose,  California  95121,  and  CELIA  BLANDO,  and  ROMEO  TORRES,  individuals
(collectively the "Shareholders"). The Seller and the Shareholders are sometimes
referred to herein collectively as the "Sellers."

     A. The  Seller  is  in  the  business  of  providing  commercial  clinical
laboratory services (the "Business").

     B. The Shareholders own all of the partnership interests in the Seller.

     C. The Seller desires to sell and the Purchaser desires to purchase certain
of the assets relating to the Business.

     NOW, THEREFORE, in consideration of the mutual agreements,  representations
and warranties contained in this Agreement, the parties agree as follows:

     1. Sale and Purchase of Purchased Assets.

     a. Purchase and Sale. Subject to the terms and conditions contained in this
Agreement,  at the  Closing (as defined  below) the Seller  shall sell,  assign,
transfer  and  convey  to  the  Purchaser,  free  and  clear  of all  liens  and
encumbrances,  and the  Purchaser  shall  purchase  from the Seller,  subject to
Section 1(b) below,  the following  tangible and  intangible  personal  property
owned by the Seller and used in,  derived from or necessary to the  operation of
the  Business  (collectively,  the  "Purchased  Assets").  Without  limiting the
foregoing, the Purchased Assets shall be deemed to include the following:

     (i) The list of clients and payors of the  Business as set forth in Exhibit
A hereto (the "Customer List"), and the continuing  business  relationships with
such parties that relate to the Business;

     (ii) All right, title and interest in the equipment,  furniture,  fixtures,
vehicles,  computers and  telecommunications  equipment  listed and described in
Exhibit B hereto (the "Equipment");

     (iii) All of the Seller's  rights under the leases,  service  contracts and
other  agreements  listed  on  Exhibit  C  hereto  (the  "Assigned  Contracts"),
commencing as of the Closing Date;

     (iv) All patents,  trademarks,  trade names, business names, service marks,
trade secrets,  logos and copyrights,  and all  applications  and  registrations
therefor, which relate to the Business;

                                        1







     (v) All prepaid expenses, deposits (including, without limitation, deposits
under the Assigned Contracts),  supplies, reagents and inventory relating to the
Business; and

     (vi) Work in process of the Business  with respect to  accessions  received
prior to the Closing.

     b. Property  Excluded.  The Purchased Assets shall not be deemed to include
any of the following assets of the Seller:

     (i) Cash,  other forms of bank  deposits and stock,  other  securities  and
accounts receivable; and

     (ii)  Personal  property  of  the  Seller  which  is not  necessary  to the
Business.

     c.  Liabilities.  Except as expressly  provided  herein with respect to the
Assigned  Contracts,  Purchaser shall not assume, or take title to the Purchased
Assets subject to, or in any way be liable or responsible  for, any  liabilities
or  obligations  of any kind of the Sellers and the  Sellers  shall  continue to
remain  responsible  for  the  same.  Without  limiting  the  generality  of the
foregoing,  the Purchaser shall not assume or take title to the Purchased Assets
subject to any of the  following:  (i) Except as  specifically  included  in the
Assigned  Contracts,  any  obligations of the Seller  outstanding on the Closing
Date or arising after the Closing Date;

     (ii) Any  liability or  obligation  of the Sellers  arising from claims for
personal  injury  (including  death) or damage to property,  including  (without
limitation)  in respect  of any  laboratory  testing  services  provided  by the
Sellers or any  negligence,  malpractice or other wrongful  action in connection
therewith;

     (iii) Any liability or obligation of the Seller, or any of their employees,
for any federal,  state,  local or foreign income,  sales,  use and other taxes,
including, without limitation, any of such taxes arising out of or in connection
with the purchase of the Purchased Assets by the Purchaser hereunder;

     (iv) Any  liability  or  obligation  in  respect  of any  plan,  agreement,
arrangement or  understanding  under which benefits or compensation are provided
by the Seller for the employees of the Business  (including  but not limited to,
any  contract  or other  obligation  for  health  insurance,  accrued  vacation,
severance pay or other benefits, or any commissions or revenue or profit sharing
or other compensation for or on sales of accounts on the Customer List);

                                        2




     (v) Any  liability or  obligation of the Seller based upon or arising under
any contract or agreement existing prior to or at the time of Closing, including
any contract  with anyone on the Customer  List for the  provision of laboratory
testing services,  other than pursuant to an Assigned  Contract,  from and after
the Closing Date;

     (vi) Any lien,  encumbrance,  security  interest  or  charge of any  nature
whatsoever; or

     (vii) Any  liabilities  or  obligations  arising from  litigation  to which
either of the  Sellers is or would be a party  that is  pending,  threatened  or
based upon facts that arise prior to the Closing.

     d. Closing and Closing Date.  Unless otherwise  agreed by the parties,  the
consummation of the transactions contemplated by this Agreement shall take place
at a closing (the "Closing") to be held at the offices of the Purchaser,  at the
address  listed  above,  at the close of business  (which shall be no later than
11:30  p.m.  local  time),  on May 16,  1996,  or such other time or date as the
Seller and the Purchaser shall mutually agree, such time and date being referred
to herein as the "Closing  Date." At the Closing,  (i) the Purchaser and each of
the Sellers shall enter into the Non-competition  Agreement in the form attached
hereto as Exhibit D (the  "Non-competition  Agreement"),  (ii) the Seller  shall
deliver to the Purchaser an executed Bill of Sale in the form attached hereto as
Exhibit E, evidencing the purchase and sale of the Purchased  Assets,  and (iii)
the Sellers shall deliver to the Purchaser all title  documents  relating to the
Purchased Assets, duly executed or endorsed for transfer to the Purchaser to the
Purchaser's reasonable satisfaction. The Non-competition Agreement and the Bill
of Sale are referred to herein collectively as the "Related Agreements".

     e.  Assumption.  Effective upon the Closing,  the Purchaser will assume the
Assigned  Contracts,  only with respect to the obligations of the Seller arising
thereunder  from and  after  the  later of the  Closing  Date or the date of the
written assignment.

     2. Purchase Price; Terms of Payment.

     a. Purchase Price.  The purchase price to be paid for the Purchased  Assets
and the related  covenants set forth in the Related  Agreements  (the  "Purchase
Price") shall consist of the following: (i) the Closing Payment (as described in
Section 2(b) below);  and (ii) the Contingent  Payments (as described in Section
2(c) below).

     b. Closing Payments. As part of the Purchase Price, the Purchaser shall pay
to the  Seller  the  amount of five  thousand  dollars  ($5,000)  (the  "Closing
Payment").

     c. Contingent Payments
   
                                     3




     (i) Terms of Payment.  As part of the Purchase  Price,  the Purchaser  also
will  (subject to the  conditions  set forth  herein) make eight (8)  additional
payments  (each a  "Contingent  Payment")  on the basis of Net  Collections  (as
defined below) and Net  Collections Per Accession (as defined below) for each of
the three (3) full calendar month periods (each, a "Revenue Period")  commencing
June 1, 1996.  The  Contingent  Payment for each Revenue Period shall be made by
bank check  delivered by the Purchaser no later than thirty (30) days  following
the end of such Revenue Period.

     (ii) Computation of Amounts. The Contingent Payment for each Revenue Period
shall  be  equal to the  amount  of Net  Collections  for  such  Revenue  Period
multiplied by (A) twenty five percent  (25%) for those Revenue  Periods in which
Net  Collections  per Accession  equal or exceed  $40.00,  or (B) twenty percent
(20.0%) for those  Revenue  Periods in which Net Revenue per Accession are equal
to or greater  than $30.00 but less than  $40.00;  provided  that no  Contingent
Payment shall be due for any Revenue Period for which Net Collections total less
than $90,000 or Net Collections Per Accession are less than $30.00.

     (iii)  Definitions.  For the purposes of this Section 2, "Net  Collections"
for any Revenue Period means cash  collections  (net of refunds and adjustments)
from  Active  Accounts  (i.e.,  those  identified  as "Active  Accounts"  on the
Customer List) for services  performed since March 26, 1996 and until the end of
such Revenue Period;  provided that Net Collections for any given Revenue Period
will first exclude any portion of cash  collections  for an Active Account which
represents  collections  from  billings of the Purchaser for clients of both the
Seller and the Purchaser  prior to the Closing  (based upon the average  charges
during the three  months  preceding  the Closing as  indicated  on the  Customer
List);  and provided  further that with respect to any account for which average
monthly  billings for the three (3) full calendar months prior to the Closing is
less than  $200.00  (which are so  identified  on the Customer  List),  then Net
Collections for such accounts will exclude  amounts  received by Meris in excess
of the Maximum  Collection  amount shown on the Customer List. "Net  Collections
Per  Accession" for any Revenue  Period means Net  Collections  for such Revenue
Period divided by the total number of accessions  processed  during such Revenue
Period,  as determined  in  accordance  with the  Purchaser's  standard  billing
procedures.  "Accession" means a patient  encounter  regardless of the number of
tests ordered for such patient or the location  where such tests are  performed.
The  Purchaser  shall count the  Accession  in the  Revenue  Period in which the
primary  payment is received on such Accession.  (i.e., if a subsequent  payment
such as a patient copay is received, the Accession will not be counted again).

     (iv) No  Representations.  The  Seller  acknowledges  and  agrees  that the
Purchaser has made no  representation  or warranty with respect to the amount of
Net  Collections  or Net  Collections  Per  Accession  to be received  after the
Closing,  and that the Purchaser will be entitled,  in its sole  discretion,  to
determine  the terms,  including  pricing and special  services,  if any, to any
account.


                                        4


     (v) Accounting. The Purchaser shall provide a monthlyreporting of the gross
charges billed and Net Collections  received by the Purchaser for the clients on
the  Customer  List.  The Seller and its  representatives  shall be  entitled to
review those books and records of the Purchaser relating to the determination of
each Contingent Payment.

     d. Allocation of Purchase  Price.  The Purchase Price shall be allocated as
provided in Exhibit F hereto for purposes of complying with the  requirements of
Section 1060 of the Internal  Revenue Code of 1986.  Each party hereto agrees to
prepare its federal and state  income tax returns for all current and future tax
reporting  periods  and file Form  8594 (and  corresponding  state  forms)  with
respect to this  transaction in a manner  consistent  with the  allocations  set
forth in said  Exhibit F. If any state or federal  taxing  authority  challenges
such  allocation,  the party  receiving  notice of such challenge shall give the
other prompt written notice of such  challenge,  and the parties shall cooperate
in good faith in responding to it in order to preserve the effectiveness of such
allocation,  and  shall  take no  position  in any tax  proceeding  inconsistent
therewith.  The allocation set forth on Exhibit F assumes a total purchase price
of  $300,000;  in the event that the actual  Purchase  Price  shall be higher or
lower than such amount, an equivalent adjustment shall be made in the portion of
the Purchase Price allocated to the Client List and Goodwill.

     e. Taxes. The Seller shall pay all sales,  use,  transfer,  excise or other
similar taxes, if any, arising out of the transfer of the Purchased  Assets,  or
otherwise as a consequence of the transactions contemplated by this Agreement.

     3.  Representations  and  Warranties  of the Sellers.  Each of the Sellers,
jointly and severally, represents and warrants to the Purchaser that:

     a.  Organization.  The  Seller is a  corporation  duly  organized,  validly
existing and in good standing  under the laws of the State of California and has
the  requisite  corporate  power and  authority  to own,  lease and  operate its
properties and to transact its business as it is now being conducted,  holds all
licenses and permits known by the Seller to be necessary and required  therefor,
and is duly qualified or licensed to do business and is in good standing in each
place and jurisdiction  where the nature of the business  conducted by it or the
ownership,  lease or  operation  of its  properties  requires  such  license  or
qualification.  The Seller has no subsidiaries and holds no equity investment in
any other person or entity.  The Shareholders own of record and beneficially all
of the stock or other  interests  of the Seller,  and no person has any right to
acquire any securities or interests of the Seller.

     b. Title to Purchased Assets. The Seller has and will convey on the Closing
Date full, absolute, good and marketable title to the Purchased Assets, free and
clear of all security interests,  mortgages,  liens (including,  but not limited
to,  liens  with  respect  to taxes),  attachments,  orders of court,  rights of
redemption, debts, claims, charges, or other encumbrances of any kind whatsoever
and not subject to any continuing commission, profit or revenue sharing or other
compensation  contract or  obligation  that could apply to the  Purchaser or the
Purchased Assets.
                                        5


     c. Due Authority;  Valid and Binding  Agreements.  The Seller has the power
and  authority  to enter into and be bound by the terms and  conditions  of this
Agreement and the Related  Agreements and to carry out its obligations  pursuant
hereto and  thereto.  Each of this  Agreement  and the Related  Agreements  is a
legal,  valid and  binding  obligation  of the Seller,  enforceable  against the
Seller in accordance with its terms.

     d. No Conflicts or  Violations.  Neither the execution and delivery of this
Agreement and the Related  Agreements nor the  consummation of the  transactions
contemplated  hereby  and  thereby  will  (i)  conflict  with or  result  in any
violation  of or  constitute  a default  under any  agreement,  mortgage,  bond,
indenture,  franchise or other  instrument  or obligation to which either of the
Sellers are a party or by which they are bound,  (ii) result in the  creation of
any lien or other encumbrance upon the Purchased Assets pursuant to the terms of
any such mortgage, bond, indenture, franchise or other instrument or obligation,
(iii) violate any  judgment,  order,  injunction,  decree or award of any court,
administrative  agency or  governmental  body against,  or binding upon,  either
Seller or upon any of the  Purchased  Assets,  (iv)  constitute  a violation  by
either Seller of any law or regulation of any  jurisdiction in which such Seller
conducts  its  business,  (v)  result  in the  breach  of any  of the  terms  or
conditions of, or constitute a default under,  or otherwise cause any impairment
of,  any  permit or  license  or other  governmental  authorization  held by the
Seller,  or (vi) result in any liability or expense to the  Purchaser  under any
collective bargaining agreements to which the Seller is a party.

     e. Customer List. The Customer List is a true and correct list of the names
and  addresses  of all  customers,  clients and payors of the Business as of the
date  hereof and (as shall be  supplemented  by the Seller in writing) as of the
Closing, and, to the best of each Shareholder's  knowledge, the Seller maintains
good continuing  business  relations with each client and payor thereon.  To the
knowledge  of the  Shareholders  and  except  as  disclosed  in  writing  to the
Purchaser,  since January 1, 1996,  there has been no occurrence or circumstance
in which (A) any  customer,  client or payor  listed  on the  Customer  List has
canceled or  significantly  curtailed  its  purchase  or referral of  laboratory
testing  services from the Seller,  (B) any  customer,  client or payor having a
contractual  relationship  with the  Seller  which by its  terms is  subject  to
renewal within twelve months of the date of this  Agreement has informed  either
Seller  that  he,  she  or  it  does  not  intend  to  renew  such   contractual
relationship, or (C) any customer, client or payor contract for the provision of
testing  services  has been lost or not  renewed  as a result of such  customer,
client or payor becoming party to any managed care or similar arrangement.  None
of the Sellers is aware that any client or payor listed on the Customer List (A)
intends  to cease or  reduce  the  purchase  or  referral  of  testing  services
following the Closing, or (B) is subject to any agreement or understanding which
would  prohibit  such  customer,  client  or payor  from  purchasing  additional
clinical  laboratory  testing services from the Purchaser  following the Closing
Date. Seller is not a party to any agreement or understanding with any HMO, IPA,
PPO,  insurance  provider,  third  party payor or other  similar  entity for the
provision of laboratory testing services that is not listed on Exhibit C.

                                        6


     f. Financial  Information;  Asset Listing.  The financial statements of the
Business for the fiscal year ended December 31, 1995, and for the four (4) month
period ended April 30, 1996, attached to this Agreement as Exhibit G or provided
by Seller before  September 30, 1996  (including,  in each case, a balance sheet
and income  statement)  are  complete  and  correct  and have been  prepared  in
accordance  with the cash basis  method of  accounting  applied on a  consistent
basis  throughout  the periods  indicated  and with each  other,  and fairly and
accurately set forth the operating results of the Seller as of the dates and for
the periods  indicated  therein.  Since the date of such  financial  statements,
there has not been any adverse  change in the  revenues  from that  reflected in
such financial  statements.  The revenues set forth in such financial statements
represent only the revenues from those customers and customer  accounts relating
to the Business and included in the Customer  List.  Exhibit G also  includes an
accurate and complete  schedule of the Seller's gross charges,  net  collections
and accessions  from customers and payors on the Customer List for each calendar
month in the twelve (12) months ended April 30, 1996.

     g. No Violation of Law.

     (i) The Business has been conducted in compliance  with all applicable laws
and regulations of federal, state and local governmental  authorities (including
without  limitation  laws  relating  to  Medicare  and  Medicaid).   The  Seller
possesses, and is in compliance with, all licenses, permits, approvals and other
governmental  authorizations necessary to the conduct of the Business (a listing
of which licenses, permits and approvals has been provided to the Purchaser). No
governmental  authority  which  licenses or audits the Sellers has conducted any
audit during the last five (5) years.

     (ii) The Seller has complied with all applicable  Blue  Cross/Blue  Shield,
Medicare,  Medicaid,  CHAMPUS and all other third party payor billing  policies,
procedures,  limitations and  restrictions  (including,  but not limited to, the
laboratory  billing  restrictions in Section 1833(h) of the Social Security Act,
42 U.S.C. ss. 13951(h)).

     (iii)  There is no  pending  or, to the  knowledge  of either  Shareholder,
threatened  recoupment or penalty action or proceeding  against the Seller under
the Medicare or Medicaid  programs or by Blue Cross/Blue  Shield or by any other
third party payor.

     (iv)  No  person  has  an  ownership   interest  in  the  Business  or  any
compensation, lease, rebate, discount or other remuneration arrangement with the
Sellers  triggering the restrictions of the provisions of the Stark Act, Section
1877 of the Social  Security  Act,  42 U.S.C.  ss.  1395nn (as the same has been
amended by the Omnibus Budget and Reconciliation Act of 1993) or in violation of
the provisions of the Medicare-Medicaid Anti-Fraud and Abuse Amendments, Section
1128(b) of the Social Security Act, 42 U.S.C.  ss.  1320a-7b(b) or of California
Business and Professions  Code Section 650 or California Labor Code Section 3215
(as the same have been amended by the  Physician  Ownership  and Referral Act of
1933).
     
                                        7



     (v) The Seller has fully  complied  with the  requirements  of theStark Act
(including  without  limitation  submission of the reports and completion of the
laboratory reference form required by such Act).

     (vi) Neither the Seller or its agents, or managing employees (as defined as
42 U.S.C.  ss.  1320a-5),  has been  excluded  or is subject to  exclusion  from
participation in federal or state health care programs  pursuant to Section 1128
of the Social  Security Act, 42 U.S.C.  ss.  1320a-7 or related  regulations  or
other federal or state laws and regulations and no such action is pending or has
been threatened against such persons.

     (vii)  Neither  the  Seller  or  its   employees,   agents  or  independent
contractors,  has  participated in or caused (i) any false statement or omission
or  misrepresentation  of fact in any  application  or claim for  payment  under
Medicare or a state  application or claim,  or (ii) any application or claim for
payment  otherwise in violation  of Section  1128A,  1128B or 1877 of the Social
Security Act, 42 U.S.C. ss.ss.  1320a-7a,  1320a-7b and 1395nn; the False Claims
Act, 31 U.S.C.  ss. 3729 et seq.; the False  Statements Act, 18 U.S.C. ss. 2002;
the Program Fraud Civil  Penalties  Act, 31 U.S.C.  ss. 3801 et seq.; or related
regulations or other federal or state laws and regulations.

     h.  Litigation,  etc.  There  are  no  suits,  actions  or  administrative,
arbitration,  unfair labor practice,  worker's compensation or other proceedings
or  governmental  investigations,  pending or  threatened  against or  relating,
directly or indirectly,  to the Purchased Assets or the Business,  and there are
no judgments,  orders,  injunctions,  decrees,  stipulations  or awards (whether
rendered  by a court,  administrative  agency or by  arbitration,  pursuant to a
grievance  or other  procedure)  against or relating to either the Seller or the
Purchased Assets which could result in a material adverse effect, or any lien or
other encumbrance, on the Purchased Assets.

     i.  Brokers,  Finders  and  Consultants.  Each of the  Sellers  jointly and
severally shall indemnify and defend the Purchaser and hold it harmless  against
any  claims for any  expenses,  fees or  commissions  of any  broker,  finder or
consultant retained by or working on behalf of either of the Sellers.

     j.  Assignability  of  Contracts;  No Default.  The Seller has no reason to
believe that assignments or other transfers of the Assigned  Contracts (on terms
at least as favorable to the Purchaser) will not be obtained for transfer to the
Purchaser  in  accordance  with  Section 5(f) hereof at or prior to the Closing,
without default,  penalty or other similar restriction.  No default or condition
permitting  declaration  of default  exists with  respect to any of the Assigned
Contracts.  The Seller is not aware of any payments (other than payment for rent
under Assigned  Contracts  relating to leased property) that will be required in
the future to be made under the Assigned Contracts.


     
                                        8



     k. Certain Schedules.  The Purchaser's test menu (including prices)that has
been provided to the Seller will be  appropriate  to service the accounts on the
Customer List, except for the modifications for custom panels,  individual tests
and special client and/or  patient  prices listed on Exhibit H attached  hereto.
There are no custom panels or special pricing  arrangements with accounts on the
Customer List that are not reflected in such Exhibit H. The  description  of the
Seller's courier routes,  pick up times and pick up locations  provided verbally
or in writing to the Purchaser are accurate and complete.

     l. Taxes. All sales and use taxes, real and personal property taxes,  gross
receipts taxes, documentary transfer taxes, employment taxes, withholding taxes,
unemployment insurance  contributions and other taxes or governmental charges of
any kind, however denominated,  for which the Purchaser could become liable as a
result of acquiring the  Purchased  Assets or which could result in a lien on or
charge against the Purchased Assets (collectively, "Taxes") have been or will be
paid for all periods prior to and  including the Closing Date.  The Sellers have
duly and timely  filed (or will file prior to the Closing  Date) all returns and
reports of Taxes required to be filed prior to such date.  There are not, and as
of the Closing will not be, any liens for Taxes on any of the  Purchased  Assets
(other than liens for Taxes not yet due and  payable).  The Seller has  complied
with all record  keeping and tax  reporting  obligations  relating to income and
employment taxes due with respect to compensation paid to Employees. The Sellers
are not "foreign persons" within the meaning of Section  1445(f)(3) of the Code.
There are no  pending  or  threatened  proceedings  with  respect  to Taxes.  No
agreement or  arrangement  regarding  compensation  which will be assumed by the
Purchaser  provides  for any  payments  which  could  result in a  nondeductible
expense to the  Purchaser  pursuant to Section 280G of the Code or an excise tax
to the recipient of such payment pursuant to Section 4999 of the Code.

     m. Inventory. As of the Closing Date, the Purchased Assets shall include an
inventory of drawing supplies (including,  without limitation,  drawing supplies
located in client  offices) that is sufficient  for at least thirty (30) days of
operations  at the same volume as for the thirty (30) day period  preceding  the
Closing Date.

     n. Health, Safety, Employment and Environmental Matters.

     (i) The Seller is in compliance with all federal,  state, local and foreign
health and occupational  safety laws and all federal,  state,  local and foreign
laws related to employment and employment practices,  compensation and benefits,
which  are  applicable  to the  Seller or the  Business,  and the  Sellers  have
conducted the Business in compliance with the foregoing provisions.

     (ii) The  Seller is in  compliance  with the terms  and  conditions  of all
environmental  permits,   licenses,  and  other  authorizations  required  under
applicable  laws  relating in any way to pollution of the  environment,  and the
Seller has conducted the Business in compliance with the foregoing provisions.


                                        9




     (iii) The Seller is in compliance with all applicable federal, state, local
and foreign laws  relating to emissions,  discharges,  and releases of hazardous
materials  into  the  environment  and  the  generation,   treatment,   storage,
transportation and disposal of hazardous wastes, including,  without limitation,
any applicable  provisions of the Resource Conservation and Recovery Act of 1976
or the Comprehensive  Environmental Response,  Compensation and Liability Act of
1980, and the Seller has conducted the Business in compliance with the foregoing
provisions.

     (iv) There are no conditions at, on, under or related to, any real property
of the Seller or at which they conduct or have conducted any of their operations
or business which  presently or potentially  pose a significant  hazard to human
health or the environment,  whether or not in compliance with law, and there has
been no production, use, treatment,  storage,  transportation or disposal by the
Seller of any Hazardous  Substance,  as hereinafter  defined, at or on such real
property nor any release or  threatened  release by the Sellers of any Hazardous
Substance,  pollutant or  contaminant  into or upon or over the real property or
into or upon ground or surface  water at or within 2,000 feet of the  boundaries
of such real property  except in compliance  with  applicable  law. No Hazardous
Substance is now or ever have been stored by the Seller on such real property in
underground  tanks,  pits or  surface  impoundments  except in  compliance  with
applicable law.

     (v)  No  action,  investigation,   proceeding,  permit  revocation,  permit
amendment, writ, injunction or claim is pending, nor has the Seller received any
notice of any of the foregoing,  concerning or relating to (i) the use, storage,
sale  or  disposal  of any  Hazardous  Substance  related  to or  affecting  the
Purchased Assets,  (ii) the exposure of any person to any Hazardous Substance as
a consequence  of any activity  related to or affecting the Purchased  Assets or
(iii)  the  presence  of any  Hazardous  Substance  in,  on or under  any of the
Seller's  facilities  or any  property  owned,  leased or occupied by the Seller
which is related to or affecting the Purchased Assets.

     (vi) For purposes of this Agreement,  "Hazardous  Substance" shall mean any
environmentally  hazardous  or  toxic  substance,  material  or  waste  which is
currently  regulated as such by any local governmental  authority,  any state or
the United States Government.

     o. Material  Misstatements and Omissions.  No representation or warranty by
either  of the  Sellers  in this  Agreement,  any  Related  Agreement  or in any
certificate  furnished  or to be  furnished  by either of the  Sellers  pursuant
hereto or in connection with the  transactions  contemplated  hereby contains or
will contain any untrue  statement  of a material  fact or omits or will omit to
state a material fact necessary to make the statements  therein, in light of the
circumstances under which they were made, not misleading.

     4.   Representations  and  Warranties  of  the  Purchaser.   The  Purchaser
represents and warrants to the Seller as follows:

                                       10

     a. Organization.  The Purchaser is a corporation duly organized and validly
existing under the laws of the State of California  and has all requisite  power
and authority to own, operate and carry on its business as it is now conducted.

     b. Due Authority; Valid and Binding Agreements. The Purchaser has the power
and  authority  to enter into and be bound by the terms and  conditions  of this
Agreement and the Related Agreements to which it is a party and to carry out its
obligations pursuant hereto and thereto.  Each of this Agreement and the Related
Agreements to which the Purchaser is a party is or, upon  execution and delivery
thereof,  will be, a legal,  valid and binding  obligation of the Purchaser,  in
each case  enforceable  against the Purchaser in accordance with its terms.  The
execution,  delivery and  performance by the Purchaser of this Agreement and the
Related  Agreements has been authorized and approved by all necessary  corporate
action.

     c. No Conflicts or  Violations.  Neither the  execution or delivery of this
Agreement and the Related  Agreements nor the  consummation of the  transactions
contemplated  hereby  and  thereby  will  (i)  conflict  with or  result  in any
violation of or  constitute  a default  under any  provision of the  Purchaser's
Articles of Incorporation or Bylaws or any agreement, mortgage, bond, indenture,
franchise or other instrument or obligation to which the Purchaser is a party or
by which it is bound, (ii) violate any judgment,  order,  injunction,  decree or
award of any court,  administrative  agency or  governmental  body  against,  or
binding upon,  the Purchaser or upon the property or business  regulation of any
jurisdiction as such law or regulation  relates to the Purchaser or the property
or business or the Purchaser,  (iii)  constitute a violation by the Purchaser of
any law or regulation of any  jurisdiction,  or (iv) result in the breach of any
of the terms or conditions of, or constitute a default under, or otherwise cause
any impairment of, any permit, license or other governmental  authorization held
by the Purchaser or required of the Purchaser to conduct its business.

     d. Brokers,  Finders and  Consultants.  The Purchaser  shall  indemnify and
defend the  Sellers  and hold each of them  harmless  against any claims for any
expenses, fees or commissions of any broker, finder or consultant retained by or
working in the Purchaser's behalf.

     e. Materials  Misstatements and Omissions. No representation or warranty by
the Purchaser in this Agreement or the Related  Agreements or in any certificate
furnished or to be furnished by the Purchaser  pursuant  hereto or in connection
with the  transactions  contemplated  hereby contains or will contain any untrue
statement  of a material  fact or,  omits or will omit to state a material  fact
necessary to make the statement  therein,  in light of the  circumstances  under
which they were made, not misleading.

     5. Interim Agreements.

     a. Access; Confidentiality.  The Sellers agree to make available all books,
records,  facilities,  employees and information  necessary for the Purchaser to
evaluate  thePurchased  Assets.  Each party hereto shall keep  confidential  and
shall not make use of any information treated by the other party as confidential

                                       11


(including, without limitation, the existence of this Agreement),  obtained from
the other party concerning the assets, properties, business or operations of the
other party other than to legal counsel,  auditors, board members,  consultants,
financial  advisers,  key employees,  lenders and investment  bankers where such
disclosure is related to the performance of obligations  under this Agreement or
the consummation of the transactions  contemplated  under this Agreement (all of
whom shall be similarly bound by the provisions of this Section 5(a)), except as
may  be  required  to  be  disclosed  by  applicable  law.  Notwithstanding  the
foregoing,  the foregoing  confidentiality  restrictions  shall not apply to (i)
information that was in the receiving  party's  possession prior to receipt from
the disclosing party,  (ii) information that becomes generally  available to the
public other than as a result of the receiving  party's  fault or action,  (iii)
information that becomes available to the receiving party from some source other
than the disclosing party,  provided that such source is under no non-disclosure
obligation, or (iv) information that is developed independently by the receiving
party without reference to the disclosing party's information.

     b. Public  Announcements.  The Purchaser and the Sellers agree to cooperate
in good faith and mutually consent to any press release or public statement with
respect to the  existence  of this  Agreement or the  transactions  contemplated
hereby,  and  further  agree  not to issue  any such  press  release  or  public
statement  prior to  consultation  with the other,  except as may be required by
law;  provided,  however,  that the  Purchaser  shall  be  entitled  to  include
information in any filing with the  Securities  and Exchange  Commission or such
press release or public  statement which is reasonably  necessary to comply with
the  Purchaser's  securities  law  reporting  and  disclosure   requirements  or
policies.

     c.  Interim  Operations.  The  Seller  agrees  that,  from the date of this
Agreement  to the Closing  Date,  the Seller will carry on its  activities  with
respect to the Purchased  Assets and the Business in the ordinary  course and in
substantially the same manner as it has prior to this Agreement,  and shall take
no action (i) that could  diminish the value of the  Purchased  Assets,  or (ii)
that would result in any  representation or warranty of the Sellers being untrue
at the Closing  Date.  The Sellers  agree to use their  respective  best efforts
prior to the Closing  Date to cause the  retention  of all clients and payors on
the Customer List and to maintain the level of service  provided to such clients
and payors.

     d. Occurrence of Conditions.  Each party hereto shall use its best efforts,
or where  appropriate  cooperate in the efforts of the other party, to cause the
occurrence  of the  conditions  specified  in  Section  6 and  Section 7 of this
Agreement.

     e. Non-solicitation  Agreement.  From the date hereof and until the Closing
Date or the termination of this Agreement,  whichever occurs earlier, neither of
the Sellers shall,  whether  directly or indirectly or through any  shareholder,
officer,  employee,   affiliate,  advisor  or  other  consultant,   initiate  or
participate  in any  discussion  or  negotiation  relating  to, or  provide  any
information in connection  with, any possible sale,  directly or indirectly,  of




                                       12


the Sellers, any of their assets or business (including, without limitation, the
Purchased Assets), to any party other than the Purchaser.

     f. Certain Assignments.  The Seller shall use their respective best efforts
to obtain assignments to Purchaser of each of the Assigned Contracts on the same
terms or terms more  favorable to the Purchaser as currently  exist with respect
to the Seller.

     g.  Employment  Arrangements.  The Purchaser  shall pay the  Shareholders a
commission  for new  accounts  that are approved by the  Purchaser  and commence
service within 90 days after the Closing Date. The commission rate paid shall be
eight  percent  (8.0%) of Net  Collections  (as  defined  in  Section  2.c.iii.)
received by Meris for the twelve (12) consecutive months following submission by
the  Shareholders  of such new account for payment.  The Purchaser  will have no
obligation to employ any employees of the Sellers after the Closing Date and the
Seller shall be solely  responsible  for all  severance,  termination  and other
employment-related liabilities.

     6. Conditions to Obligations of the Purchaser.  Absent a waiver in writing,
all obligations of the Purchaser  under this  Agreement,  except the obligations
set forth in Section 5 and Section 9 hereof,  are subject to the satisfaction of
the following  conditions,  to the Purchaser's  reasonable  satisfaction,  on or
before the completion of the Closing on the Closing Date:

     a.  Representations,  Warranties and Performance.  The  representations and
warranties  of the Sellers  contained  herein  shall be deemed to have been made
again at and as of the Closing  Date and shall then be true and correct with the
same force and effect as if such  representations  and warranties have been made
at and as of the Closing  Date;  the Sellers  shall have  performed and complied
with all agreements,  conditions and covenants  required by this Agreement to be
performed or complied with by the Sellers  prior to or at the Closing Date;  and
each of the Sellers shall have  furnished to the  Purchaser a certificate  dated
the Closing Date,  verifying,  in such detail as the  Purchaser  may  reasonably
request, to the fulfillment of the foregoing conditions.

     b. Litigation.  There shall not be pending any litigation  before any court
or governmental  agency (i) the outcome of which could reasonably be expected to
have a material  adverse  affect on the  Purchased  Assets or their value to the
Purchaser,  or (ii) to restrain or prohibit or to obtain damages or other relief
in connection with, or which is related to or arises out of, this Agreement, the
Related Agreements or the transactions contemplated hereby or thereby.

     c.  Certain  Assignments.  The  assignments  of the  Assigned  Contracts as
described  in Section 5(f) hereof  shall have been  received to the  Purchaser's
satisfaction,  or the Seller shall have provided the Purchaser  with  reasonable
assurances that such assignments will be obtained promptly following the Closing
Date.


                                       13



     d.  Absence of  Material  Changes.  There  shall not have been any  adverse
change in or to the Purchased  Assets or revenues  obtained or anticipated to be
obtained therefrom.  e. Related Agreements.  The Sellers shall have executed and
delivered each of the Related Agreements to which they are a party.

     f.  Approvals.  All  consents,  approvals  and filings  required  under any
applicable  law,  rule or  regulation  to be completed or obtained  prior to the
transactions  contemplated  by this Agreement and the Related  Agreements  shall
have been so completed or obtained, as the case may be.

     g. FIRPTA  Affidavit.  The Seller shall have provided the Purchaser with an
affidavit  stating,  under penalty of perjury,  that the Seller is not a foreign
person and providing such Seller's U.S. taxpayer identification number.

     h. Cooperation in Transition.  At least five (5) business days prior to the
Closing Date,  the Seller shall have provided the Purchaser  with an opportunity
to meet with an interview the Seller's employees and representatives of accounts
listed on the Customer  List, in order for the Purchaser to  familiarize  itself
with the operation of the Seller's  business and to facilitate the transition of
the Business to the Purchaser.

     7.  Conditions to Obligations  of the Sellers.  Absent a waiver in writing,
all obligations of the Sellers under this Agreement,  except the obligations set
forth in  Sections  5 and 9  hereof,  are  subject  to the  satisfaction  of the
following conditions, to the Seller's reasonable satisfaction,  on or before the
completion of the Closing on the Closing Date:

     a.  Representations,  Warranties and Performance.  The  representations and
warranties of the Purchaser shall be deemed to have been made again at and as of
the  Closing  Date and shall  then be true and  correct  with the same force and
effect as if such  representations and warranties had been made at and as of the
Closing  Date;  the  Purchaser  shall  have  performed  and  complied  with  all
agreements,  conditions and covenants required by this Agreement to be performed
or complied with by it prior to or at the Closing Date.

     b. Litigation.  There shall not be pending any litigation  before any court
or  governmental  agency to restrain  or prohibit or to obtain  damages or other
relief  in  connection  with,  or which is  related  to or arises  out of,  this
Agreement,  the Related  Agreements or the transactions  contemplated  hereby or
thereby.

     c. Related Agreements.  The Purchaser shall have executed and delivered the
Related Agreements to which it is a party.

     d.  Approvals.  All  consents,  approvals  and filings  required  under any
applicable  law,  rule or  regulation  to be completed or obtained  prior to the
transactions  contemplated  by this Agreement and the Related  Agreements  shall
have been so completed or obtained, as the case may be.

                                       14





     8. Termination; Survival and Effect of Termination.

     a. Termination.  Anything contained herein to the contrary notwithstanding,
this  Agreement  may be  terminated  and the  transactions  contemplated  hereby
abandoned at any time prior to the Closing Date:

     (i) By mutual consent of the Purchaser and the Seller;

     (ii) By the  Purchaser,  if any of the  conditions  set forth in  Section 6
shall have become  incapable of  fulfillment  prior to May 30, 1996,  through no
fault of the Purchaser and shall not have been waived by the Purchaser;

     (iii) By the Seller,  if any of the conditions set forth in Section 7 shall
have become  incapable of fulfillment  prior to May 30, 1996 through no fault of
the Sellers and shall not have been waived by the Sellers;

     (iv) By either the  Purchaser,  on one hand,  or the Sellers,  on the other
hand, if (A) the other has breached this Agreement in any material respect,  (B)
any of the  representations  and  warranties  made by the other in  Section 3 or
Section 4 of this  Agreement  (as the case may be) is false or inaccurate in any
material  respect,  or (C) the Closing  does not occur on or before May 30, 1996
(unless such date is extended by mutual  agreement),  but only if the failure to
consummate  such  transaction  on or before  such date did not  result  from the
failure by the party seeking such termination to fulfill any condition set forth
in  Section  5(d),  Section  6 or  Section  7, as the  case  may be,  which is a
condition  precedent  to the  obligation  of the other under this  Agreement  to
consummate the transactions contemplated hereby; or

     (v) Without  limiting the  foregoing,  by the Purchaser if there has been a
material  adverse  change in the  Purchased  Assets or the  revenue  and  income
expected to be obtained therefrom.

     b.  Survival.  If this  Agreement  is  terminated  prior to Closing and the
transactions  contemplated  hereby are not consummated at such time as described
above,  this  Agreement  shall  become void and of no further  force and effect,
except for the  provisions  of Section  5(a)  (relating  to the  obligations  of
confidentiality);  Section 5(b) (relating to disclosure); Section 8 (relating to
termination); Section 9(a) (relating to indemnification); Section 9(b) (relating
to arbitration);  and Section 10 (relating to certain miscellaneous provisions);
provided,  however,  that  such  termination  shall  not  limit  any  rights  or
obligations  of any party  hereto for breach of this  Agreement  or any  Related
Agreement.

    



                                       15



     c.  Effect  of  Termination.   Notwithstanding   Section  8(b)  hereof,  if
theSellers  terminates this Agreement prior to the Closing pursuant to paragraph
8(a)(iii),  8(a)(iv)(A) or 8(a)(iv)(B) above or if the Purchaser terminates this
Agreement pursuant to paragraph  8(a)(ii),  8(a)(iv)(A),  8(a)(iv)(B) or 8(a)(v)
above,  the terminating  party shall be entitled to recover from the other party
all reasonable costs and expenses incurred by the terminating party with respect
to the  transactions  contemplated by this Agreement,  including  attorneys' and
consultants'  fees, as well as any damages or other relief the terminating party
may be entitled to collect by law.

     9. Covenants Following Closing.

     a. Indemnification.

     (i) Indemnification by Seller and the Shareholders.  Each of the Seller and
the Shareholders,  jointly and severally,  agrees to indemnify,  defend and hold
the  Purchaser  harmless from and against any and all losses,  claims,  demands,
damages, costs and expenses (including without limitation, reasonable attorneys'
fees and  disbursements)  of every kind,  nature and  description  (collectively
"Claims")  based  upon,  arising  out of or  otherwise  in  respect  of (A)  any
inaccuracy  in or  any  breach  of any  representation,  warranty,  covenant  or
agreement  of the Sellers  contained in this  Agreement  or in any  certificate,
document or instrument delivered pursuant to this Agreement (including,  without
limitation,  any  expenses  incurred by the  Purchaser  in  connection  with any
governmental proceeding or investigation relating to the conduct of the Business
prior to the Closing  Date);  (B) any claim arising out of or made in connection
with the  conduct  of the  Business  prior to the  Closing  Date;  (C) any claim
arising  out of or  related  to the  liabilities  not  expressly  assumed by the
Purchaser  pursuant to this  Agreement  (including,  without  limitation,  those
described in Section 1(c) hereof;  or (D) any claim arising out of or related to
performance of any Assigned Contract prior to the date of assignment  thereof to
the  Purchaser.  Each of the Sellers agrees that any breach of this Agreement by
the  other  Seller  shall be deemed  to be a breach  of this  Agreement  by each
Seller,  and that all of the  obligations  of the Sellers  under this  Agreement
shall be, in all cases, joint and several. The Purchaser may, at its option (and
without  limiting  any other  rights or remedies  available  to the  Purchaser),
deduct the amount of any Claim described  above from any amounts  required to be
paid to the Sellers under Section 2(c) of this Agreement.

     (ii)  Indemnification by the Purchaser.  The Purchaser agrees to indemnify,
defend and hold the Sellers  harmless  from and against any and all Claims based
upon,  arising out of or  otherwise in respect of (A) any  inaccuracy  in or any
breach of any representation,  warranty,  covenant or Agreement of the Purchaser
contained  in this  Agreement  or in any  certificate,  document  or  instrument
delivered  pursuant to this  Agreement;  (B) any claim arising out of or made in
connection with the Purchaser's  conduct of its business after the Closing Date;
or (C) any claim  arising  out of or  related  to  performance  of any  Assigned
Contract following the date of assignment thereof to the Purchaser.

     
                                       16

     b.  Arbitration.  Any dispute  arising  between the parties with respect to
this  Agreement  (including,  without  limitation,  in regard to any claim under
Section 9(a) hereof) orany Related  Agreement,  shall be settled by  arbitration
conducted  in San Jose,  California.  If either  party  wishes  to  commence  an
arbitration hereunder, it shall serve written notice to such effect on the other
party and, within 45 days thereafter, the parties shall mutually select a single
arbitrator to conduct such  arbitration from among a list of retired federal and
state trial court  judges  eligible to serve in such  capacity  furnished to the
parties by the American  Arbitration  Association.  If the parties are unable to
select an  arbitrator by mutual  agreement  within such period,  the  arbitrator
shall be selected by the American Arbitration Association in accordance with its
procedures.  In  conducting  the  arbitration,  the  arbitrator  shall apply the
Commercial Arbitration Rules of the American Arbitration Association as modified
by any other  instructions  that the parties may agree upon at the time,  except
that each party shall have the right to conduct  discovery  in any manner and to
any extent  authorized by the Federal Rules of Civil Procedure as interpreted by
the federal courts.  Costs and expenses,  including  reasonable  attorneys' fees
incurred  with respect to the  arbitration,  shall be borne by the losing party,
unless  otherwise  determined by the arbitrator based on a showing of good cause
to vary from the usual rule expressed in this sentence.  The arbitrator's  award
shall be final and unappealable. A judgment upon the award may be entered in any
court having jurisdiction of the parties.

     c.  Seller's  Employees.   The  Seller  agrees  that  it  shall  bear  sole
responsibility for all amounts due and payable or otherwise arising with respect
to the Seller's  employees at and prior to the Closing  Date,  including but not
limited to, all salaries,  wages,  commissions,  profit and revenue sharing, and
holiday,  vacation and severance pay, bonuses and past service credits and shall
have made and remitted,  for all periods through and including the Closing Date,
all  payroll  deductions,  remittances  and  contributions,  including,  but not
limited  to,   employees'   salaries   and  wages,   commissions,   bonuses  and
profit-sharing  required under contract, any collective bargaining agreements or
applicable laws and regulations.

     d. Use of Name.  Following the Closing  Date,  neither of the Sellers shall
use the name  "ROCEL"  or any  variations  thereon,  except in  connection  with
winding up of the Business.

     f. Transition Support.

     (i) The  Sellers  will use their  respective  best  efforts  to assist  the
Purchaser in achieving the orderly  transition  of the  Purchased  Assets to the
Purchaser,  and the Sellers shall  cooperate in connection  with such transition
(including,  without  limitation,  in providing any  introduction  to customers,
clients  and  payors on the  Customer  List),  in order that the  Purchaser  may
incorporate the Purchased Assets into its existing laboratory operations with no
interruption in service to clients or diminution in quality and no diminution in
the value of the Purchased Assets.

     (ii)  The  Seller  shall  observe  faithfully  the  terms  of all  Assigned
Contracts until assignments or transfers thereof have been obtained.
                                       17


     (iii)  For a period of four (4)  years  following  the  Closing  Date,  the
Purchaser shall make available such books and records  included in the Purchased
Assets as are  requested  by the  Secretary  of Health and Human  Services,  the
Comptroller  General of the United States, or their authorized  representatives,
pursuant  to  Section  952 of the  Omnibus  Reconciliation  Act of 1980  (or any
successor or other  applicable  statute or  regulation),  in compliance with the
time, place and manner of providing access set forth in such request.

     (iv) The Sellers shall provide each other with such  information and access
to books and records as may  reasonably  be requested by the other in connection
with any Claim or the  preparation  of any  returns of Taxes and audits or other
proceedings relating to Taxes.

     10. Miscellaneous.

     a. Survival of  Representations  and Warranties.  All  representations  and
warranties  of the  Purchaser  and the Sellers made in this  Agreement or in any
certificate,  document  or other  instrument  delivered  pursuant  hereto  shall
survive the execution and delivery hereof and the Closing.

     b. Fees and Expenses.  Subject to the  provisions of Sections 8(c) and 9(e)
hereof,  each of the  parties  hereto  shall  bear its own  fees  and  expenses,
including  fees of counsel  and  accountants,  incurred in  connection  with the
negotiation of this Agreement and the Related Agreements and the consummation of
the transactions contemplated hereby and thereby or otherwise arising out of, or
by reason of, this Agreement or any Related Agreement.

     c. Entire  Agreement;  Third Party  Beneficiaries.  This  Agreement and the
Related  Agreements  (including  the exhibits and schedules  hereto and thereto)
constitute  the entire  agreement  between the parties  hereto and thereto  with
respect to the subject  matter hereof and thereof and  supersedes  all prior and
contemporaneous  agreements,   understandings,   negotiations  and  discussions,
whether oral or written, of the parties with respect thereto. The parties hereto
acknowledge  and  agree  that no third  party  (including  any  employee  of the
Sellers) is intended to be a third-party  beneficiary  of this  Agreement or any
Related Agreement.

     d. Amendments.  No amendment,  modification or rescission of this Agreement
or any Related Agreement shall be effective unless set forth in writing executed
by the party sought to be bound thereby.

     e.  Notices.  Any notice  given  hereunder  or under any Related  Agreement
(except as otherwise  provided  therein) shall be in writing and shall be deemed
effective upon the earlier of personal delivery  (including personal delivery by
telex or other  means),  the day  after  delivery  by  commercial  courier  to a
responsible individual or the third day after mailing by certified or registered
mail, postage prepaid, as follows:


                                       18





                           (1)     If to the Purchaser:
                                   Meris Laboratories, Inc.
                                   2890 Zanker Road
                                   San Jose, CA  95134
                                   (408) 434-9200

                    Attention: William Neeley, MD, President

                    1)       If to the Sellers:
                             c/o ROCEL Clinical Diagnostics, Inc.
                             Celia Blando or Romeo Torres
                             P.O. Box 7368
                             Oxnard, CA   93031


or to such other address as any party may have furnished in writing to the other
party in the manner provided above.

     f. Assignment. No party may assign this Agreement or any Related Agreement,
nor may any of its rights hereunder be assignable or transferable, in any manner
by  a  party,   without  the  prior   written   consent  of  the  other   party.
Notwithstanding the foregoing,  however,  the Purchaser (and its successors) may
assign this Agreement or any Related Agreement and any or all of the Purchaser's
rights and  obligations  hereunder or thereunder,  to another entity (i) if such
entity has at least the same net worth immediately  following such assignment as
the Purchaser  immediately prior to such assignment,  or (ii) in connection with
any sale of all or substantially all of the Purchaser's assets or the sale of at
least a majority of the  Purchaser's  capital  stock,  and so long as, in either
case, such entity  acknowledges  and accepts in writing the obligations  assumed
pursuant to such  assignment.  Any  proposed  assignment  in  violation  of this
Section 10(f) shall be void.  Subject to the  foregoing,  this Agreement and the
Related  Agreement  shall be binding  upon and shall inure to the benefit of the
parties hereto and their respective transferees,  successors,  assigns and legal
representatives.

     g.  Incorporation by Reference.  All Exhibits referred to in this Agreement
are by this reference incorporated herein as an integral part hereof.

     h.  Governing  Law.  This  Agreement  and the  Related  Agreements  and the
respective  rights and  obligations  of the parties  hereto and thereto shall be
construed under and by the laws of the State of California, without reference to
conflicts of laws principles.

     i.  Captions.  The title to the Sections and  subsections of this Agreement
and the Related Agreements are included herein solely for convenience, are not a
part of this  Agreement or any Related  Agreement and do not in any way limit or
amplify the terms of this Agreement or any Related Agreement.

                                       19


     j. Attorneys' Fees. If any legal action or proceeding is brought to enforce
or interpret this Agreement or any Related  Agreement,  or because of an alleged
dispute, breach, default or misrepresentation in connection with this agreement,
the prevailing  party shall be entitled to reasonable  attorneys' fees and costs
in connection  with such action or proceeding in addition to all other relief to
which such party may be entitled.

     k. No Waiver.  It is understood  and agreed that no failure or delay by any
party in exercising any right,  power, or privilege hereunder shall operate as a
waiver thereof,  nor shall any single or partial exercise of any right, power or
privilege  be  deemed  to  operate  as a waiver  of any  other  right,  power or
privilege hereunder.

     l.  Counterparts.  This Agreement and any Related Agreement may be executed
in any  number  of  counterparts,  each of which  shall be  considered  to be an
original,  but  all  of  which  together  shall  constitute  one  and  the  same
instrument.




                            [SIGNATURE PAGE FOLLOWS]



























                                       20





              IN WITNESS  WHEREOF,  the parties  hereto have duly  executed this
Agreement as of the date first set forth above.

PURCHASER:                                  MERIS LABORATORIES, INC.,
                                            a California corporation


                                              
                                            By:  /S/ William Neeley, M.D.
                                                ---------------------------
                                                  William Neeley, M.D.
                                                  President

SELLER:
                                            ROCEL Clinical Diagnostics, Inc.
                                            a California corporation



                                             By: /s/ Celia Blanda
                                                ---------------------------- 
                                          Title: TECH. DIRECTOR
                                                ---------------------------- 
 
SHAREHOLDERS:

                                            /s/ Celia Blanda 
                                            ----------------------------------
                                            Celia Blando, an individual

                                            /s/ Romeo Torres
                                            ----------------------------------
                                            Romeo Torres, an individual














                                       21







                                LIST OF EXHIBITS


Exhibit A                       Customer List

Exhibit B                       Equipment

Exhibit C                       Assigned Contracts

Exhibit D                       Non-competition Agreement

Exhibit E                       Bill of Sale

Exhibit F                       Purchase Price Allocation

Exhibit G                       Seller's Financial Statements

Exhibit H                       Special Panels and Pricing



























                                       22





                                    EXHIBIT A

                                  CUSTOMER LIST

                                           

Group A                                 GROUP B
- -------                                 -------

David Kerwin                            Chris Mele/Indian Health
E. Leslie Weeks                         David Shields
Hien-Van Nguyen                         Burt McDowell
Tung Phan                               Antoine Pham
Minh-Tam Nguyen                         Ngai-Xuan Nguyen
Nora Ancheta                            Thinh Nguyen
Renuka Patel                            Raphael Chu
Howard Thornton/Infinity Home Care      Thuan Luu
John McClain                            Youbert Kavalian
Kenneth Rebong                          Chau Minh Nguyen
Marie-Anson Rebong                      Leticia Lutap
Rom Romero                              Cao Van Tran
Sam Khieu                               Rafia Parveen



A.   Clients  listed  in Group A are  considered  Active  for  purposes  of each
     earnout period.

B.   Any physician listed in Group B will be considered Active if during the two
     (2) month period from June 1, 1996 to July 31, 1996 adjusted  gross charges
     for that account  averages $1,000 per month.  Any physician in Group B that
     does not fit the above criteria will not be considered Active.















                                        1





                                    EXHIBIT B

                            DESCRIPTION OF EQUIPMENT

Purchased Assets:

Tangible  purchased  assets shall  include the  following  items  located in the
remote draw stations:

1.   Modesto
     1 centrifuge              $100
     1 refrigerator              50
     1 table                     50
     1 chair, for drawing        25
     waiting room chairs         25
                               ----
                               $250

2.   Riverbank
     1 centrifuge              $100
     1 refrigerator              50
     1 table                     50
     1 chair, for drawing        25
     waiting room chairs         25
                               ----
                               $250

              TOTAL            $500
                               ====


















                                        1






                                    EXHIBIT C

                               ASSIGNED CONTRACTS

     1. Lease or sublease  agreements for the Seller's  offices or draw stations
at the following locations:

     a.       110 Santa Barbara Ave.
              Modesto, California

     b.       3227 Stanislaus
              Riverbank, California 95367


































                                        2


                                    EXHIBIT D
                            NON-COMPETITION AGREEMENT

         Agreement is made and entered  into as of May 16, 1996,  by and between
Meris Laboratories, Inc., a California corporation, (the "Purchaser"), and ROCEL
Clinical Diagnostics,  Inc., a California corporation (the "Seller"),  and Celia
Blando and Romeo Torres,  individuals  (collectively,  the "Shareholders")  (the
Seller and the Shareholders are referred to herein  collectively as the "Selling
Parties").

     A. The Selling Parties are parties to that certain Asset Purchase Agreement
dated May 16, 1996 (the "Purchase  Agreement"),  pursuant to which the Purchaser
has purchased  certain assets  (including the customer list attached  thereto as
Exhibit A (the  "Customer  List")  relating  to the  Selling  Parties'  clinical
laboratory testing business; and

     B. The Shareholders are the only shareholders of the Seller.

     C. The business relationships that the Selling Parties have maintained with
the Seller's clients contribute substantially and materially to the value of the
Customer  List,  and  the  Selling  Parties'  knowledge  and  experience  in the
laboratory  business and their financial and investment ability could be used in
a manner  which would  prevent the  Purchaser  from  realizing  the  benefits it
bargained for in purchasing such Customer List; and

     D. The Selling  Parties are willing to enter into this Agreement in further
consideration  of the  obligations  undertaken  by the Purchaser in the Purchase
Agreement.

NOW,  THEREFORE,  in  consideration of the mutual  agreements  contained in this
Agreement and in the Purchase Agreement, the parties agree as follows:

     1. Noncompetition  Covenant of the Selling Parties. No Selling Party shall,
during the period specified in Section 2 below, do any of the following  without
the prior written consent of the Purchaser:

     a. Carry on in any county or other  political  subdivision  of any state or
commonwealth of the United States of America in which a client or client account
listed on the Customer List is located,  including  (without  limitation)  Santa
Clara and Stanislaus  County  (collectively,  the  "Restricted  Territory")  any
business or  activity  in the field of  commercial  medical  laboratory  testing
services, (collectively, "Laboratory Services"), whether directly or indirectly,
as a partner,  shareholder,  principal,  agent,  medical director,  affiliate or
consultant;

     b. Solicit or influence or attempt to influence any customer, client, payor
or other person  located  within the Restricted  Territory,  including  (without
limitation) those listed on the Customer List, either directly or indirectly, to
direct,  his, her or its purchases of Laboratory  Services to any person,  firm,
corporation, institution or other entity in competition with the business of the
Purchaser; or
                                        1


     c. Solicit or influence or attempt to influence any person  employed by the
Purchaser,  including any such employee who may previously have been employed by
any Selling Party,  to terminate or otherwise  cease his or her employment  with
the Purchaser or become an employee of any Selling  Party,  any affiliate of any
Selling Party, or any competitor of the Purchaser.

     2.  Duration.  The  covenants  set forth in  Section  1 shall be  effective
commencing  as of the date hereof and shall  continue  with respect to a Selling
Party until the fifth (5th) anniversary of the date of this Agreement.

     3. Certain  Inquiries.  Each Selling Party agrees that to the extent any of
them receive  during the term hereof any  inquiries  or requests for  Laboratory
Services of the type  provided  by the  Sellers  prior to the date hereof in the
Restricted  Territory  from any person,  whether or not such person is listed on
the Customer  List,  such Selling  Party shall state only that the Customer List
has been acquired by the Purchaser.

     4.  Limitations on  Non-Competition  Covenant.  Section 1 of this Agreement
shall not be deemed to apply to any  investments  any Selling  Party may make in
any publicly traded company so long as such Selling Party's  aggregate  holdings
do not exceed one percent  (1%) of the  outstanding  voting  securities  of such
company.

     5.  Confidentiality.  During the term hereof, each Selling Party agrees not
to  disclose,  communicate,  use  to the  detriment  of the  Purchaser  (or  its
business)  or for the  benefit of any other  person,  or misuse in any way,  any
proprietary  or  confidential  information  of the Purchaser such as information
relating  to  the  Seller's  business,  trade  secrets,  personnel,   processes,
techniques,  know-how,  customer  lists,  formulas  and  other  information  and
technical data.

     6.  Severability.  The scope and effect of the covenants  contained in this
Agreement  shall be as broad in time (but not beyond the  duration  specified in
Section 2 hereof), geography, and in all other respects as is permitted pursuant
to  the  provisions  of  Sections  16600  through  16602  of  the  Business  and
Professions  Code of the State of California,  or other applicable law. Should a
court  or  other  body of  competent  jurisdiction  determine  that  any term or
provision of this  Agreement  restricts  competition to a greater degree than is
permitted by law, such term or provisions  shall be adjusted rather than voided,
if possible,  in accordance with the preceding sentence and with applicable law,
and all other terms and provisions of this  Agreement  shall be deemed valid and
enforceable to the maximum extent possible.

     7. Remedies.  The parties hereto  acknowledge  and agree that the extent of
damages to the Purchaser in the event of a breach of the covenants  contained in
this Agreement by any of the Selling Parties would be difficult or impossible to



                                        2





ascertain  and that there is and will be available to the  Purchaser no adequate
remedy at law in the event of any such breach. Consequently, each of the Selling
Parties hereby agrees that in the event of such breach,  the Purchaser  shall be
entitled to enforce any or all of the covenants  contained in this  Agreement by
injunctive or other equitable relief.

     8. Publicity.  During the period specified in Section 2 hereof, the Selling
Parties  will not make any public  statement  concerning  the  Purchaser  or the
existence  or  terms  of  this  Agreement,  except  as  required  by  applicable
securities laws.

     9. Miscellaneous. The provisions of Section 10(b), (c), (d), (e), (f), (h),
(i),  (j),  (k) and (l) of the Purchase  Agreement  are  incorporated  herein by
reference and made a part hereof (with all references to the "Agreement" therein
being construed to be references to this Agreement).

                            [SIGNATURE PAGE FOLLOWS]



                                                         

























                                       3






     IN WITNESS  WHEREOF,  the parties hereto have executed this Agreement as of
the date first written above.


                                    MERIS LABORATORIES, INC.,
                                    a California corporation

                                    By: /s/ William Neeley. M.D.
                                        ------------------------
                                        William Neeley. M.D.
                                        President

SELLING PARTIES:


                                    ROCEL Clinical Diagnostics, Inc.
                                    a California corporation


                                    By: /s/ Celia Blando
                                        -------------------------------
                                    Title:   TECH. DIRECTOR
                                           ----------------------------  

                                        /s/ Celia Blando
                                    -----------------------------------
                                       Celia Blando, an individual

                                        /s/ Romeo Torres
                                    ------------------------------------
                                       Romeo Torres, an individual
















                                        1





                                    EXHIBIT E

                                  BILL OF SALE

     KNOW ALL MEN BY THESE PRESENTS,  that ROCEL Clinical  Diagnostics,  Inc., a
California  corporation (the  "Transferor"),  in exchange for  consideration set
forth in the Asset  Purchase  Agreement  (the  "Agreement")  dated as of May 16,
1996, by and among the  Transferor  and MERIS  LABORATORIES,  INC., a California
corporation (the  "Transferee"),  hereby sells,  transfers,  assigns and conveys
unto  Transferee,  its successors  and assigns,  free and clear of all liens and
encumbrances,  all of the right,  title and interest of Transferor in and to the
Purchased Assets (as described in the Agreement), including (without limitation)
the  customer  list  attached  hereto as Exhibit A and the  equipment  and other
personal property described in Exhibit B attached hereto.

     TO HAVE  AND TO HOLD  the  same  unto the  Transferee,  its  successors  or
assigns, forever, and the Transferor hereby agrees that the Transferor will from
time to time,  if  requested  by the  Transferee,  its  successors  and assigns,
execute,  acknowledge  and  deliver,  or will  cause  to be done,  executed  and
delivered to the  Transferee,  or its  successors or assigns,  all further acts,
transfers,  assignments,  deeds,  powers and assurances of title, and additional
papers and  instruments,  and do or cause to be done all acts or things as often
as may be proper or necessary for better assuring,  conveying,  transferring and
assigning all of the property  hereby  conveyed,  transferred  or assigned,  and
effectively  to carry out the intent  hereof,  and to vest in the Transferee the
entire  right,  title and interest of the  Transferor  in and to all of the said
property,  and  the  Transferors  will  warrant  and  defend  the  same  to  the
Transferee,  its successors and assigns,  forever  against all claims or demands
whatsoever.

  IN WITNESS WHEREOF, the Transferor has executed this instrument as of May 16,
1996.

                                   ROCEL Clinical Diagnostics, Inc.,
                                   a California corporation


                                   By:  /s/ Celia Blando
                                       ----------------------

                                   Title:  TECH. DIRECTOR
                                          -------------------    





                                        1





                                    EXHIBIT F

                            PURCHASE PRICE ALLOCATION



Customer List and and Goodwill                       $249,500

Equipment (See Exhibit B)                                 500

Noncompete Agreement (See Exhibit D)                   50,000
                                                     --------  
                                                     $300,000
                                                     ========  

































                                        1





                                    EXHIBIT G

                          SELLER'S FINANCIAL STATEMENTS


                [TO BE PROVIDED BY SELLER BY SEPTEMBER 30, 1996]

                                                      


Note:The Company  anticipates  to file  Exhibit G to Exhibit  10.1 (filed to the
     June 30,  1996  Quarterly  Report on Form 10-Q)  along  with the  Quarterly
     Report on Form 10-Q for the period ended September 30, 1996.


































                                        1


                                    EXHIBIT H

                           SPECIAL PANELS AND PRICING
          
                                              UNIT CODE INFORMATION - COMPLETE
                    PAGE   1
                                                  ACTIVE AND INACTIVE
USER: HT            5/17/96
                    11:17:18     
                                                        

1)Unit Code              350345
2)Ordering Mnemonics     CH20R
3)Reporting Title        CHEM 20
5)Specimen Type          S
6)Worklist               CHEM
7)Test Code              35000 - SODIUM
                         35020 - POTASSIUM
                         35040 - CHLORIDE
                         35060 - CO2
                         35100 - GLUCOSE
                         35940 - BUN
                         36040 - CREATININE
                         36220 - TOTAL PROTEIN
                         36260 - ALBUMIN
                         36280 - GLOBULIN
                         36300 - A/G RATIO
                         36860 - URIC ACID
                         36900 - CALCIUM
                         36940 - PHOSPHORUS
                         37020 - TOTAL BILIRUBIN
                         37140 - ALKALINE PHOSPHATASE
                         37280 - AST (SGOT)
                         37300 - ALT (SGPT)
                         37320 - LD
                         37460 - CK TOTAL
                         37740 - CHOLESTEROL
                         37760 - TRIGLYCERIDES
11)Pathologist Review    N
13)Container Type        SST
15)Transport Temperature REFRIGERATE
17)Laboratory Area       RTA
19)Day (s) Test Set-up   DAILY
30)Special Instructions for Draw List
                         1 ML SERUM
40)Report Sequence       350345

10056260(PROFILE)        Unit Code: 350550   Unit Code Name: CHEM 23
  ROCEL 24 PROFILE                  39140         T4
                         Mnemonic: ROC24

                                       1


10056250 (PROFILE)       Unit Code: 350550   Unit Code Name: CHEM 23
  ROCEL 28 PROFILE                  39140         T4
                                    100000        CBC, 4 INDICES,5 PART DIFF 
                         Mnemonic: ROC28

10056060 (PROFILE)       Unit Code: 350550   Unit Code Name: CHEM 23
 ROCEL 30 COMPREHENSIVE             377860              HDL,LDL,C/H,L/H
                                    37820               VLDL
                                    391400              THYROID SCREEN
                                    39340               TSH - HIGHLY SENSITIVE
                                    11040               SED RATE, WESTERGREN
                                    61220               RPR
                                    150000              URINALYSIS
                                    150020              UA MICROSCOPIC
                         Mnemonic: ROC30                



































                                       2

                                             UNIT CODE INFORMATION - COMPLETE
                    PAGE   2                        ACTIVE AND INACTIVE         
USER: HT            5/17/96
                    11:17:18

10056080 (PROFILE)  Unit Code: 37640  Unit Code Name: IRON
  ANEMIA PANEL                 376600                 TIBC,UIBC,%SAT
                               37720                  FERRITIN
                               41520                  FOLATE, SERUM
                               100000                 CBC, 4 INDICES,5 PART DIFF
                               10640                  RETICULOCYTE COUNT
                    Mnemonic: ROCANEM
10056070 (PROFILE)  Unit Code: 36860  Unit Code Name: URIC ACID
  ARTHRITIS PANEL              36900                  CALCIUM
                               36940                  PHOSPHORUS
                               37140                  ALKALINE PHOSPHATASE
                               61440                  RHEUMATOID FACTOR
                               11040                  SED RATE, WESTERGREN
                    Mnemonic: ROCARTH
1) Unit Code                  351070
2) Ordering Mnemonics         CH10R
3) Reporting Title            CHEM 10
5) Specimen Type              S
6) Worklist                   CHEM
7) Test Code                  35100 - GLUCOSE
                              35940 - BUN
                              36040 - CREATININE
                              36220 - TOTAL PROTEIN
                              36260 - ALBUMIN
                              36280 - GLOBULIN
                              36300 - A/G RATIO
                              36860 - URIC ACID
                              36900 - CALCIUM
                              36940 - PHOSPHORUS
                              37020 - TOTAL BILIRUBIN
                              37740 - CHOLESTEROL
11) Pathologist Review        N
13) Container Type            SST
15) Transport Temperature     REFRIGERATE
17) Laboratory Area           CHEMISTRY
19) Day (s) Test Set-up       DAILY
30) Special Instructions for Draw List
                              1 ML SERUM
40) Report Sequence           351070
 1) Unit Code                 350125
 2) Ordering Mnemonics        CH10G
 3) Reporting Title           CHEM 10
 5) Specimen Type             S
 6) Worklist                  CHEM
 7) Test Code                 35000 - SODIUM
                              35020 - POTASSIUM
                              35100 - GLUCOSE
                              35940 - BUN
                              36040 - CREATININE                              

                                       3

                                              UNIT CODE INFORMATION - COMPLETE
                    PAGE   3                          ACTIVE AND INACTIVE

USER: HT            5/17/96
                    11:17:18

7)   Test Code cont'd         36900 - CALCIUM
                              37020 - TOTAL BILIRUBIN
                              37280 - AST(SGOT)
                              37740 - CHOLESTEROL
                              37760 - TRIGLYCERIDES
11) Pathologist Review        N
13) Container Type            SST
15) Transport Temperature     REFRIGERATE
17) Laboratory Area           CHEMISTRY
19) Day(s) Test Set-up        DAILY
30) Special Instructions for Draw List
                              1 ML SERUM
40) Report Sequence           350125

10056090 (PROFILE)            Unit Code: 35000   Unit Code Name: SODIUM
  HYPERTENSION PROFILE                   35020                   POTASSIUM
                                         35100                   GLUCOSE, RANDOM
                                         35940                   BUN
                              Mnemonic: ROCHYP

1) Unit Code                  360030
2) Ordering Mnemonics         LIVRR
3) Reporting Title            LIVER PROFILE
5) Specimen Type              S
6) Worklist                   CHEM
7) Test Code                  36220 - TOTAL PROTEIN
                              36260 - ALBUMIN
                              36280 - GLOBULIN
                              36300 - A/G RATIO
                              37020 - TOTAL BILIRUBIN
                              37040 - DIRECT BILIRUBIN
                              37060 - IND BILIRUBIN
                              37100 - GGT
                              37280 - AST(SGOT)
                              37300 - ALT(SGPT)
                              37320 - LD
11) Pathologist Review        N
17) Laboratory Area           CHEMISTRY
40) Report Sequence           360030

10056270 (PROFILE)            Unit Code: 37560    Unit Code Name: AMYLASE, TOTAL
  PANCREATIC PROFILE                     37620                    LIPASE
                                         37760                    TRIGLYCERIDES
                                         36900                    CALCIUM
                                         37100                    GGT
                              Mnemonic: ROCPAN

                                       4


                                              UNIT CODE INFORMATION - COMPLETE
                    PAGE   4                         ACTIVE AND INACTIVE

USER: HT            5/17/96
                    11:17:18

1) Unit Code             351060
2) Ordering Mnemonics    CH7R
3) Reporting Title       CHEM 7
5) Specimen Type         S
6) Worklist              CHEM
7) Test Code             35000 - SODIUM
                         35020 - POTASSIUM
                         35100 - GLUCOSE
                         35940 - BUN
                         36040 - CREATININE
                         36220 - TOTAL PROTEIN
                         36260 - ALBUMIN
                         36280 - GLOBULIN
                         36300 - A/G RATIO
11) Pathologist Review   N
13) Container Type       SST
17) Laboratory Area      CHEMISTRY
19) Day(s)Test Set-up    DAILY
30) Special Instructions for Draw List
                         0.5 ML
40) Report Sequence      351060

10056310 (PROFILE)       Unit Code: 350550 Unit Code Name:CHEM 23
  CH23,HDL/LDL,THYSCN,TSH,ESR,RPR   377860                HDL,LDL,C/H,L/H
                                    37820                 VLDL
                                    391400                THYROID SCREEN
                                    39340                 TSH - HIGHLY SENSITIVE
                                    11040                 SED RATE, WESTERGREN
                                    61220                 RPR
                         Mnemonic:  HSP3



  












                                       5


                                              UNIT CODE INFORMATION - COMPLETE
                    PAGE   5                        CROSS REFERENCE

USER: HT            5/17/96
                    11:17:18


NAME                             CODE    NAME               CODE      NAME
                    CODE
- --------------------------------------  -------------       --------  ----------
- ------------------- ----

ANEMIA PANEL                   10056080 CHEM 20              350345   PANCREATIC
 PROFILE            10056270
ARTHRITIS PANEL                10056070 CHEM 7               351060   ROCEL 24 P
ROFILE              10056260
CH23,HDL/LDL,THYSCN,TSH,ESR,RPR10056310 HYPERTENSION PROFILE 10056090 ROCEL 28 P
ROFILE              10056250
CHEM 10                         350125  LIVER PROFILE        360030   ROCEL 30 C
OMPREHENSIVE        10056060
CHEM 10                         351070 






























                                       6