Janoly A, Bleyzac N, Favetta P, Gagneu MC, Bourhis Y, Coudray S, Oger I, Aulagner G. Simple and rapid high-performance liquid chromatographic method for nelfinavir, M8 nelfinavir metabolite, ritonavir and saquinavir assay in plasma.
J Chromatogr B Analyt Technol Biomed Life Sci 2002;
780:155-60. [PMID:
12383491 DOI:
10.1016/s1570-0232(02)00465-8]
[Citation(s) in RCA: 17] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
A simple reversed-phase liquid chromatographic method has been developed to determine protease inhibitors concentrations in plasma. Plasma samples (250 micro l) containing protease inhibitors were prepared by a simple deproteinization (recovery: 92, 91, 91 and 90.5% for ritonavir, saquinavir, nelfinavir and M8 nelfinavir metabolite, respectively). Chromatography was accomplished using a Hypersil octadecylsilyl column (100 x 4.6 mm I.D.) and a mobile phase composed of acetonitrile, tetrahydrofuran and dihydrogenophosphate buffer (pH 4) (32:10:58, v/v). Ultraviolet detection at 210 nm was used. The limit of detection was 200 ng/ml for ritonavir, saquinavir, nelfinavir and M8 nelfinavir metabolite. Calibration curves were linear up to 20000 ng/ml, with correlation coefficients better than 0.997 for all compounds. Intra- and inter-day coefficients of variation of the assay were <or=6% for all compounds. This method was used to analyse protease inhibitors plasma concentrations after oral administration within the framework of therapeutic drug monitoring and pharmacokinetic studies in AIDS patients.
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