Patent · US Expired

Method for detecting hydrogen peroxide employing triaryl- and trihetarylmethane derivatives as redox indicators

US4988616A · kind A · utility

4Cited by

4References

7Claims

0Family size

Assignee

BAYER HEALTHCARE LLC · DE

Inventors

Holger Heidenreich · Cologne, DE
Gerhard Wolfrum · Waldershof, DE
Klaus Wehling · Wuppertal, DE
Herbert Hugl

Key dates

Filing date	Jan 24, 1989
Grant date	Jan 29, 1991
Priority date	—
Expiry date	Jan 24, 2009

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T436/206664
WIPO fieldBiotechnology
WIPO sectorChemistry

Abstract

A method for detecting hydrogen peroxide wherein a sample is contacted with a peroxidase or a peroxidatively-active substance and a redox indicator of the following ##STR1## in which A and D independently of one another represent phenyl, pyridyl or imidazolyl, PA1 G represents O, CH.sub.2 or S, PA1 m represents the number zero or one, and PA1 X represents O, ##STR2## or --NR.sup.1 --NR.sup.2 -- R.sup.1 and R.sup.2, independently of one another, denote hydrogen, alkyl, cycloalkyl, aryl or aralkyl, or --NR.sup.1 R.sup.2 together represent a pyrrolidine, pyrazoline, piperidine, piperazine or morpholine radical and PA1 T denotes hydrogen, hydroxyl, alkyl, aryl, alkoxy, phenoxy, SO.sub.3 H, --COOH or ##STR3## whereby a color change is brought out if hydrogen peroxide is present.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.