Wako Pure Chemical Industries, Inc.

Shinzo Kobatake

Toshiro Hanada

Kazuhiko Yamanishi

Yoshitsugu Sakata

Kuniaki Tokuda

Kyoichi Sumida

Shizuka Kasahara

Kazunari Fujio

Motoo Goto

Yoshitaka Hamaguchi

An immuno active substance immobilized on a carrier and stabilized by immersing the carrier in a solution of at least one of sugars and proteins can be used for measuring a physiologically active substance even after stored for a long period of time. A preferred embodiment of the invention uses a synergistic mixture of a sugar and a protein as the stabilizing agents.

Stabilizing method for immuno active substances immobilized on insoluble

Peroxidic substances in a sample, e.g. one or more peroxidic substances in fats and oils or in an organic material, lipoperoxides in a living sample, etc. can be determined, directly in a sample or after extracting the lipoperoxides from a living sample with a solvent, by contacting the peroxidic substances with an oxidizable color reagent in the presence of a metallic compound produced from a metal which is able to have two or more valences to produce color, and measuring degree of coloring colorimetrically.

Method for measuring peroxidic substances

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Suita, Japan

Shinzo Kobatake