A two reagent-type kit for assaying GPT by acting GPT on L-alanine and .alpha.-ketoglutarate in the presence of pyridoxal phosphate, converting the resulting pyruvate into lactate with L-lactate dehydrogenase (LDH) in the presence of reduced nicotinamide adenine dinucleotide (NADH) and measuring GPT based on a decrement of NADH, the GPT assay kit comprising a first reagent and a second reagent, one of which contains pyridoxal phosphate, L-alanine, .alpha.-ketoglutarate, LDH and NADH and the other reagent contains no pyridoxal phosphate but contains L-alanine. The GPT assay kit is stable over a long period of time.

Dois um reagent-tipo jogo para assaying GPT por GPT agindo na L-alanina e no alpha.-alpha.-ketoglutarate na presença do phosphate do pyridoxal, convertendo o pyruvate resultante no lactate com L-l-lactate o dehydrogenase (LDH) na presença do dinucleotide de adenina de nicotinamide reduzido (NADH) e de GPT de medição baseado em um decréscimo do NADH, o jogo do assay de GPT que compreende um primeiro reagent e um segundo reagent, um de que contenha o phosphate do pyridoxal, L-alanina, alpha.-alpha.-ketoglutarate, LDH e o NADH e o outro reagent não contêm nenhum phosphate do pyridoxal mas contêm a L-alanina. O jogo do assay de GPT é estável sobre um período de tempo longo.

 
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