Stable reagent for ferric ion complex indicator systems

Details Stable reagent for ferric ion complex indicator systems Stable reagent for ferric ion complex indicator systems

1995-06-22

1997-06-17

Kight, John

Chemistry: molecular biology and microbiology

Measuring or testing process involving enzymes or...

Involving oxidoreductase

435 14, 435 4, 435190, 436 63, 436 74, 424 941, C12Q 128, C12Q 154, C12Q 100, C12N 904

Patent

active

056396317

ABSTRACT:
The invention is a stable reagent used in assay systems that form a colored ferric ion complex, such as Prussian Blue. Such reagents are useful for the detection or measurement of an analyte from a fluid sample. Surprisingly, it has been found that the inclusion of certain ferric ion chelating agents, such as 3-sulfobenzoic acid, will inhibit formation of the blank reaction in the reagent.

REFERENCES:
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patent: 4701420 (1987-10-01), Thunberg et al.
patent: 4755472 (1988-07-01), Ismail et al.
patent: 4929545 (1990-05-01), Freitag
patent: 4942127 (1990-07-01), Wada et al.
patent: 5334508 (1994-08-01), Hoenes
patent: 5434055 (1995-07-01), Jernigan
patent: 5508171 (1996-04-01), Walling et al.

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