News Release

FOR RELEASE JUNE 1, 1998 AT 7:30 AM EDT
- ---------------------------------------
Contact:     Matt Clawson (investors)      or            Paul J. Catuna
             Owen Daley (media)                          Vice President, Finance
             Allen & Caron, Inc                          Isonics Corporation
             (714) 252-8440                              (408) 260-0155


                   ISONICS CORPORATION ANNOUNCES IT HAS AGREED
                           TO ACQUIRE CHEMOTRADE GMBH

SAN JOSE,  CA (June 1, 1998) . . . Isonics  Corporation  (OTC:  ISON)  announced
today  that  it  has  signed  a  definitive  agreement  to  acquire  Dusseldorf,
Germany-based  Chemotrade  GmbH, a privately  held company  that  supplies  both
stable and radioactive isotopes to customers world-wide. In business since 1990,
Chemotrade  had sales of over $7 million for its fiscal year ended  December 31,
1997 and has been profitable since its first year of operation.

Isonics has agreed to pay  approximately  $3.6 million in a combination of cash,
notes,  and  restricted  Isonics  common  stock.  A  substantial  portion of the
purchase price is contingent  upon the future  performance  of  Chemotrade.  The
number of shares of Isonics  stock to be issued  will be based upon the  average
closing price of Isonics  stock for the 10 trading days  preceding and 5 trading
days following the signing.  The transaction is expected to close before the end
of  August,  subject  to the  completion  of due  diligence  and  other  closing
conditions.  Chemotrade will operate as a wholly owned  subsidiary with existing
management remaining in place.

Isonics  President & CEO James E.  Alexander  commented,  "Chemotrade  primarily
markets  isotopes and related  products  that are not  competitive  with Isonics
products,  so their  revenues and profits will be  completely  incremental.  The
acquisition of Chemotrade  also opens the European market and provides access to
key  customers  for  Isonics  products.  While  Chemotrade  has  several  supply
relationships for their  radioisotope  products in the United States, we believe
we can help them dramatically expand their North American market share."

"Chemotrade's expertise in radioisotopes provides Isonics a new opportunity with
a large potential upside."  Alexander added, "They now supply Iodine-125,  which
is used in surgical implants to treat prostate cancer.  Chemotrade management is
considering  strategies related to manufacturing the actual radioactive  `seeds'
as well as developing other  brachytherapy  products in partnership with medical
device companies."


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                4010 Moorpark Ave. Suite 119 o San Jose CA 95117
                      (408) 260-0155 o Fax (408) 260-2110




ISONICS CORPORATION TO ACQUIRE CHEMOTRADE GMBH
Page 2-2-2


Chemotrade was  co-founded  and is managed by Herbert  Hegener and Helmut Swyen.
According to Swyen,  "During the  structuring of this deal, we have come to know
Isonics  management  personnel and  appreciate  their overall  corporate  growth
strategy. The strategic fit between our companies is excellent.

"Isonics'  access to  technology,  obtained  through its joint  venture with the
Institute of Stable Isotopes in Tblisi,  Georgia,  combines well with the German
government's  economic development programs for creating high technology jobs in
the former East Germany" he said. "It also provides an  outstanding  opportunity
for creating the only `domestic'  source of the stable isotope Carbon-13 for the
emerging European diagnostic breath test market."

Isonics is a specialty  chemical and advanced  materials  company which develops
and commercializes  products based on enriched stable isotopes.  Stable isotopes
can  be  thought  of  as  ultra-ultra  pure  materials.   This  high  degree  of
purification  provides  enhanced  performance   properties  compared  to  normal
materials.  Stable  isotopes have  commercial  uses in several areas,  including
energy; research, medical diagnostics, and drug development; product tagging and
stewardship; semiconductors; lasers; and optical materials.

Except for  historical  information  contained  herein,  this document  contains
forward-looking   statements  within  the  meaning  of  the  Private  Securities
Litigation Reform Act of 1995. These statements  involve known and unknown risks
and uncertainties  that may cause the Company's actual results or outcomes to be
materially different from those anticipated and discussed herein,  including the
risk that the  acquisition  may not close due to a variety  of  reasons  and the
risks  inherent in acquiring a company in  Chemotrade's  industry,  and the risk
that future business and technology  acquisitions may not occur for a variety of
reasons,  including  the  unavailability  of  financing.  Further,  the  Company
operates  in  industries  where  securities  values may be  volatile  and may be
influenced  by  regulatory  and other  factors  beyond  the  Company's  control.
Important  factors that the Company  believes might cause such  differences  are
discussed  in the risk  factors  detailed  in the  Company's  Prospectus,  dated
September  22,  1997,  and its recent  10-QSB's  filed with the  Securities  and
Exchange Commission. In assessing  forward-looking  statements contained herein,
readers are urged to carefully read all cautionary statements contained in those
filings with the Securities and Exchange Commission.


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