Nitrocefin is a chromogenic cephalosporin substrate. which changes color from yellow to red upon beta-lactamase mediated hydrolysis.
硝基芬是一种发色性头孢菌素底物。
To study the Chromogenic substrate limulus amebocyte lysate (LAL) to detect the content of bacterial endotoxin in human albumin.
为了对显色基质法测定人血白蛋白中的内毒素含量方法进行探讨。
Methods: the limulus lysate test of chromogenic substrate method was applied to detect the change of endotoxin content in 33 teeth with periodontitis before and after root canal treatment.
方法：采用产色基质法鲎试验对33例根尖周炎治疗前后根管内的内毒素含量变化进行了检测。
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