Composition, method and test device for determining the presence of leukocyte cells, esterase or protease in a test sample
申请人:Bayer Corporation
公开号:EP0698600A1
公开(公告)日:1996-02-28
A composition, method and test device for determining the presence of leukocyte cells, esterase or protease in a test sample are disclosed. The composition comprises a lactate ester having the structure
wherein A is an alcohol blocking group, and wherein B-O- is a residue of compound B-OH and provides a detectable response when the lactate ester is hydrolyzed; and a buffer. In a preferred embodiment, the lactate ester has the structure
wherein X is O, S or NR², R is aryl or lower alkyl, R¹ is hydrogen or lower alkyl, and R² is hydrogen, lower alkyl or aryl.
本发明公开了一种用于确定测试样本中是否存在白细胞、酯酶或蛋白酶的组合物、方法和测试装置。该组合物由具有以下结构的乳酸酯组成
其中 A 是醇封端基团,B-O- 是化合物 B-OH 的残基,当乳酸酯水解时可提供可检测的反应;以及缓冲液。在一个优选的实施方案中,乳酸酯具有以下结构
其中 X 是 O、S 或 NR²,R 是芳基或低级烷基,R¹ 是氢或低级烷基,R² 是氢、低级烷基或芳基。