摘要:
Direct bilirubin can be measured by using as an reaction inhibitor a water-soluble high polymer, nonionic surfactant having a HLB value of 15 or more, etc.
摘要:
γ-GTP activity can be determined easily by using a stabilized substrate solution comprising γ-L-glutamyl-p-nitroanilide and a modified cyclodextrin, together with an acceptor solution containing an acceptor for glutamic acid and measuring p-nitroaniline generated.
摘要:
Disclosed herein is a high sensitivity method of colorimetrically measuring zinc by using a 2-pyridylazoaminophenol derivative represented by the following general formula (I) or a salt thereof as a coloring reagent, wherein a masking agent excellent in stability and acting specifically upon specific metals is used. As the masking agent is used a surface active agent. wherein X and Y represent a halogen atom or a hydrogen atom, R 1 represents a hydrogen atom or a lower alkyl group, and R 2 and R 3 represent a hydrogen atom, a lower alkyl group, -(CH 2 ) n SO 3 H in which n is an integer of 1-4, or in which ℓ is an integer of 0-4 and m is an integer of 0-4. The masking agent may be surface active agent in combination , with dimethylglyoxime in case of masking nickel and/or cobalt.
摘要:
Direct bilirubin can be measured by using as an reaction inhibitor a water-soluble high polymer, nonionic surfactant having a HLB value of 15 or more, etc.