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US 4,902,477 AGranted
Annalytical element for quantitative analysis of bilirubin
AssigneeFuji Photo Film Co., Ltd.
InventorsHarumi Katsuyama, Shigeki Kageyama, Kumiko Sato
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Abstract
An analytical element for quantitative analysis of bilirubin in a liquid sample by a diazo method, characterized in that the bilirubin detection reagent is a non-diffusive aryldiazonium salt having in the aryl group at least one substituent selected from the group consisting of an alkoxycarbonyl group, an alkylaminosulfonyl group and an alkylaminocarbonyl group.
Claims4
An analytical element for the quantitative analysis of bilirubin in a liquid sample by a diazo method which comprises:
- a liquid impermeable, light-transmissive support;
- a porous reagent layer comprising a nondiffusive aryldiazonium salt, the aryl group of which having at least one substituent selected from the group consisting of an alkoxycarbonyl group, an alkylaminosulfonyl group and an alkylaminocarbonyl group, which is contained in a porous matrix comprising solid fine particles and an acidic polymer binder;
- and
- a liquid sample-spreading layer.
1 more element
Dependencies are inferred from the claim text.