Derivatives of hippuryl-L-phenylalanine and their use in determining the activity of carboxypeptidase A
申请人:FUJIREBIO KABUSHIKI KAISHA
also trading as FUJIREBIO INC.
公开号:EP0083857A1
公开(公告)日:1983-07-20
Derivatives of hippuryl-L-phenylalanine having the following general formula:
wherein X reprsents OH or CH3O are novel substances and are used in determining the activity of carboxypeptidase-A in a liquid medium containing it by addition to the liquid medium prior to or together with hippuricase, 4-aminoantipyrine and an oxidising agent. The concentration of the quinonimine dye which is formed as a result of adding the oxidising agent is measured colounmetrically to give a value from which the activity of carboxypeptidase A may be determined.
具有以下通式的马尿酰-L-苯丙氨酸衍生物是一种新型物质:
其中 X 代表 OH 或 CH3O,是一种新型物质,用于测定羧肽酶-A 在含有它的液体培养基中的活性,方法是在液体培养基中加入马尿酶、4-氨基安替比林和氧化剂之前或一起加入。加入氧化剂后形成的醌亚胺染料的浓度通过色度测量得出一个值,据此可确定羧肽酶 A 的活性。