Color indicator composition and film for detecting hydrogen peroxide
AssigneeFuji Photo Film Co., Ltd.
InventorsHarumi Katsuyama, Tadao Shishido
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Abstract
In a multilayer analysis film for detecting hydrogen peroxide by dry process which comprises a support and a reagent layer having contained therein a color indicator composition comprising peroxidase and a substance capable of causing a optically detectable change in the presence of hydrogen peroxide and peroxidase, the color indicator composition is characterized by further containing specific pyrogallol derivatives. Such pyrogallol derivatives improve stability during storage of such a multilayer analysis film.
Claims17
In a color indicator composition for detecting hydrogen peroxide comprising a substance having peroxidase activity and a substance capable of causing a detectable change in the presence of hydrogen peroxide and said substance having a peroxidase activity, the color indicator composition for detecting hydrogen peroxide comprising a pyrogallol derivative represented by formula (1):
- ##STR12## wherein Q.sup.1 represents a nitro group, a cyano group, an alkyl group, a substituted alkyl group, an aryl group, a substituted aryl group, an aralkyl group, a carboxyl group or a --COOQ.sup.2 group wherein Q.sup.2 represents an alkyl group, a substituted alkyl group, an aryl group, a substituted aryl group or an aralkyl group.
In a quantitative analysis film which comprises a support and a reagent layer having contained therein a color indicator composition for detecting hydrogen peroxide comprising a substance having a peroxidase activity and a substance capable of causing a detectable change in the presence of hydrogen peroxide and the substance having a peroxidase activity, the quantitative analysis film wherein the composition contains a pyrogallol derivative represented by formula (1):
- ##STR15## wherein Q.sup.1 represents a nitro group, a cyano group, an alkyl group, a substituted alkyl group, an aryl group, a substituted aryl group, an aralkyl group, a carboxyl group or a --COOQ.sup.2 group wherein Q.sup.2 represents an alkyl group, a substituted alkyl group, an aryl group, a substituted aryl group or an aralkyl group.
Dependencies are inferred from the claim text.