Kanto Kagaku Kabushiki Kaisha

Toshihiro Ono

Junichi Taniguchi

Tomota Nakano

A reagent for a drug susceptibility testing which is simple and highly reproducible is provided. A microplate for a drug susceptibility testing wherein a drug and a color reagent containing a tetrazolium salt, 1-methoxy-5-methylphenazinium methylsulfate (1-methoxy PMS), potassium ferricyanide and potassium ferrocyanide are formed into a solid phase on the microplate by a vacuum drying, and a kit consisting of the microplate and a medium for a cell growth, and the testing method.

Microplate for drug susceptibility testing containing a drug, a color reagent, and color suppressant

Quantitative assay and reagent for the determination of chlorine ion in body fluid. Body fluid is contacted with a reagent which includes deactivated .alpha.-amylase, a compound capable of chelating calcium ion, a calcium chelate compound, and an .alpha.-amylase activity-measuring substance; the amount of .alpha.-amylase activity is proportional to the amount of chlorine ion present in the body fluid. The assay is suitable for automation.

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Isehara, Japan

Toshihiro Ono