Browdy and Neimark
Method of terminating isocitrate dehydrogenase reaction
 Urea, creatinine, creatine, triglycerides, or the like in a specimen can be accurately determined by terminating an isocitrate dehydrogenase reaction by addition of a chelating agent in a system wherein NADP.sup.+ formed from NADPH is reproduced into NADPH in the conjoint presence of an isocitrate, metallic ions such as magnesium or manganese ions, and isocitrate dehydrogenase in assaying a substance by means of a reaction of NADPH to NADP.sup.+. 
Oriental Yeast Co., Ltd.
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inventional inventional inventional
Yoji Isamu Takashi Chozo Tuyosi
Marui Takagaharay Nakano Hayashi Fujita