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Journal of chromatography

[Microdetermination of pyrazinamide and its metabolites (pyrazinoic acid, 5-hydroxypyrazinoic acid, 5-hydroxypyrazinamide and pyrazinuric acid) in plasma and urine with liquid chromatography].


PMID 3437007

Abstract

The method reported here for determining pyrazinamide and its metabolites (2-pyrazinoic acid, 5-hydroxypyrazinamide, 5-hydroxypyrazinoic acid and pyrazinuric acid) consists of diluting urine or acid deproteinisation of serum followed by chromatography on a cation-exchange column. The column length and the detection system (ultraviolet or fluorimetry) allow for a very good separation of the different compounds; the sensitivity of the method makes it suitable for pharmacokinetic studies.

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56350
5-Hydroxy-2-pyrazinecarboxylic acid, ≥96.0% (T)
C5H4N2O3