News Release

FOR RELEASE JULY 21, 1998 AT 7:30 AM EDT
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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 COMPLETES
                           CHEMOTRADE GMBH ACQUISITION

SAN JOSE,  CA (July 21, 1998) . . . Isonics  Corporation  (OTC:  ISON)  reported
today that it completed its  previously  announced  acquisition  of  Dusseldorf,
Germany-based  Chemotrade GmbH for $2.5 million in a combination of cash, notes,
and restricted Isonics common stock. Additional consideration of $1.1 million is
payable  over  the  next  three  years  based  on  Chemotrade   meeting   future
profitability  targets.  Chemotrade,  a supplier of both stable and  radioactive
isotopes to  customers  world-wide,  had sales of over $7 million for its fiscal
year  ended  December  31,  1997 and has been  profitable  in each of the past 7
years.  The Company will operate as a wholly  owned  subsidiary  of Isonics with
existing management remaining in place.

Isonics  President  & CEO James E.  Alexander  commented,  "The  acquisition  of
Chemotrade  not only  opens  the  European  market  and  provides  access to key
customers  for Isonics  products,  it also expands our product  lines to include
radioisotopes  used in  medical  diagnostics  and  therapeutics.  Our goal is to
leverage  Chemotrade's current European market position while implementing plans
to bring our stable isotope production capabilities to western Europe."

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
risks inherent in acquiring a company in Chemotrade's industry (e.g., assumption
of known and unknown liabilities, including environmental liabilities). 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.
Other 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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