title: An LC-MS-MS method for the determination of nevirapine, a non-nucleoside reverse transcriptase inhibitor, in human plasma.
abstract: A sensitive and rapid liquid chromatography tandem mass spectrometry (LC-MS-MS) method has been developed to measure the levels of the HIV-1 non-nucleoside reverse transcriptase inhibitor nevirapine (NVP) in human plasma. The analyte and internal standard (IS) are isolated from plasma by a simple perchloric acid precipitation of plasma proteins followed by centrifugation. LC-MS-MS in positive mode used pairs of ions at m/z of 267/226 for NVP and 628/421 for the IS, respectively. Two linear calibration curves were established for quantitation of NVP with the low curve ranging from 25 to 1000 ng/ml and the high curve ranging from 1000 to 10,000 ng/ml. Mean inter- and intra-assay coefficients of variation (CVs) over the ranges of the two standard curves were less than 10%. The overall recovery of NVP was 92.4%.
authors.affiliation: Drug Research Unit, Department of Clinical Pharmacy, School of Pharmacy, University of California, San Francisco, CA 94143, USA. jchi@mail.uh.edu
authors.forename: Jingduan
authors.initials: J
authors.lastname: Chi
authors.forename: Anura L
authors.initials: AL
authors.lastname: Jayewardene
authors.forename: Judith A
authors.initials: JA
authors.lastname: Stone
authors.forename: Francesca T
authors.initials: FT
authors.lastname: Aweeka
mesh_terms: D019380:Anti-HIV Agents / Q000097:blood*; D002138:Calibration / Q000592:standards; D002851:Chromatography, High Pressure Liquid / Q000379:methods; D004355:Drug Stability; D006801:Humans; D013058:Mass Spectrometry / Q000379:methods; D019829:Nevirapine / Q000097:blood*; D018894:Reverse Transcriptase Inhibitors / Q000097:blood*; D012680:Sensitivity and Specificity
chemical_list: D019380:Anti-HIV Agents; D018894:Reverse Transcriptase Inhibitors; D019829:Nevirapine