Method and kit for detecting antibiotics in a liquid sample

Chemistry: molecular biology and microbiology – Measuring or testing process involving enzymes or... – Involving hydrolase

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435 23, 435 28, 435 29, 435810, 435 25, 436 23, C12Q 136, C12Q 138, C12Q 102

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active

046861823

ABSTRACT:
A method of detecting a beta-lactam antibiotic in a liquid sample comprising the steps of: (a) forming a reaction medium by adding the sample to a predetermined amount of a dry reagent formulation comprising a D,D-carboxypeptidase, a substrate for said D,D-carboxypeptidase containing a carboxy-terminal D-alanine, and a reagent system which produces a color change in the presence of D-alanine; (b) incubating said reaction medium for a predetermined period; (c) adding a quenching material to terminate the reaction; (d) observing the color of the reaction medium. A kit for carrying out this method is also disclosed.

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