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High-pressure liquid chromatographic analysis of penicillin G potassium and its degradation products

J M Blaha, A M Knevel, S L Hem

Journal of Pharmaceutical Sciences

|August 1, 1975

Abstract:

An anion-exchange high-pressure liquid chromatographic system capable of separating penicillin G potassium from five of its degradation products was developed. The retention times were: penicillin G potassium, 17.5 min; DL-penicillamine, 4.5 min; benzylpenilloic acid, 7.0 and 8.0 min; benzylpenamaldic acid, 13.0 min; benzylpenicilloic acid, 19.5 min; and benzylpenillic acid, 22.0 min. In addition, the system permits quantification using linear calibration curves.

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