| 摘要 |
A stable aqueous NAD reagent useful in the measurement of analytes in biological fluids, particularly ethanol and lactate. For the determination of alcohol, the reagent contains alcohol dehydrogenase, pyrazole, NAD, SUTTOCIDE A and an aliphatic, zwitterionic buffer having a secondary or tertiary amine group. Preferred buffers are TAPSO, AMPSO, POPSO, TAPS and DIPSO. For the determination of lactate, the reagent contains lactate dehydrogenase, pyrazole, NAD, SUTTOCIDE A and an aliphatic, zwitterionic buffer having a secondary or tertiary amine group.
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