The determination of azapropazone in blood plasma

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Abstract
SummaryThree methods for the determination of azapropazone were studied for the analysis of blood plasma samples taken after oral administration of azapropazone. A gas chromatographic method was compared with two simple spectrophotometric assay methods and the effect of metabolites of the drug on each method is described. It is concluded that metabolites are unlikely to cause significant interference with the two simple methods and that either is suitable for determination of plasma levels of the drug. Some problems associated with a gas chromatographic method are described and the comparative results of the examination of plasma samples using these methods are given.