Tester for detecting a substance in a body fluid.

摘要

A tester for detecting a substance in a body fluid comprises a test piece containing an indicator intended for detection by a substance of interest present in a specimen by virtue of peroxidase reaction, peroxidase-like reaction, or diazo coupling reaction and adapted to assume color in density corresponding to the concentration of the substance and a transparent or semi-transparent oxidizer film when the film is contacted with a liquid containing the substance formed on the surface of said test piece and containing an oxidizing agent in an amount of 0.9 to 15 m.mols, per unit area (m<2>) of said test piece.