PMID: 7086653Apr 1, 1982Paper

An isocratic high-pressure liquid chromatographic determination of naproxen and desmethylnaproxen in human plasma

Journal of Pharmaceutical Sciences
J L ShimekS K Khalil


An isocratic high-pressure liquid chromatographic method for the determination of naproxen and its desmethyl metabolite in human plasma is presented. A reversed-phase octadecylsilane column was utilized with a mobile phase consisting of 55% methanol and 45% 0.10 M acetate buffer, pH 5.0. A spectrofluorometric detector with an excitation wavelength of 253 nm and a band pass filter provided high sensitivity with no interference from normal plasma constituents. The reproducibility and precision of the method were shown by analysis of spiked samples containing 2.5-70 micrograms/ml of plasma.


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Related Concepts

Desmethylnaproxen, (S)-isomer
High Pressure Liquid Chromatography Procedure
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