High-pressure liquid chromatographic analysis of antipyrine in small plasma samples.

Abstract

A high-pressure liquid chromatographic (HPLC) method was developed for the assay of antipyrine in small (0.1-ml) plasma samples using aminopyrine as the internal standard and a reversed-phase microparticulate column. The assay sensitivity (1 microgram/ml) permits development of a plasma level--time curve using a single rat. The mean (+/- SE) plasma elmination half-life in rats was 1.28 +/- 0.14 hr. A comparison of the spectrophotometric method with the HPLC method yielded a correlation coefficient of 0.98. The HPLC assay for antipyrine is rapid and precise and can be used for hepatic drug metabolism study in a single animal.

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@article{Shargel1979HighpressureLC, title={High-pressure liquid chromatographic analysis of antipyrine in small plasma samples.}, author={Leon Shargel and William M. Cheung and Anling Yu}, journal={Journal of pharmaceutical sciences}, year={1979}, volume={68 8}, pages={1052-4} }