Chemistry: analytical and immunological testing – Metal or metal containing – Present in biological fluids
Patent
1987-04-15
1991-02-12
Hill, Jr., Robert J.
Chemistry: analytical and immunological testing
Metal or metal containing
Present in biological fluids
422 56, 436 79, 436164, 436169, G01N 2178
Patent
active
049923811
ABSTRACT:
The present invention resides in the discovery of a new class of compounds defined herein as "chromogenic hemispherands" useful for the measurement of ions, in particular, ions in aqueous solution, methods of using the chromogenic hemispherands and test devices containing the chromogenic hemispherands. The chromogenic hemispherands of the invention have the structure ##STR1## wherein: R, same or different, is hydrogen, lower alkyl, lower alkylidene, lower alkenyl, allyl or aryl;
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Chapoteau Eddy
Cram Donald J.
Czech Bronislaw P.
Gebauer Carl R.
Helgeson Roger C.
Greenman Jeffrey M.
Hill Jr. Robert J.
Technicon Instruments Corporation
The Regents of the University of California
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