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US4764462A Detectably labeled cephalosporin assay for beta-lactamase 失效
可检测标记的β-内酰胺酶的头孢菌素测定

Detectably labeled cephalosporin assay for beta-lactamase
摘要:
This invention provides for a cephalosporin immobilized on a solid phase support comprising a beta-lactamase releasable, detectably labeled substituent at the 3-position thereof.This invention also provides for an assay for detecting the presence of beta-lactamase enzyme in a sample comprising:(a) immobilizing a cephalosporin on a solid phase support wherein at the 3-position of said cephalosporin is a detectably labeled substituent releasable by beta-lactamase;(b) contacting said sample with the immobilized cephalosporin of step (a); and,(c) detecting the released substituent.
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