title: Application of a sensitive liquid chromatographic/tandem mass spectrometric method to a pharmacokinetic study of allylestrenol in healthy Chinese female volunteers.
abstract: A sensitive, specific and rapid liquid chromatographic/tandem mass spectrometric (LC/MS/MS) assay for the determination of allylestrenol in human plasma was established. Plasma samples were extracted by tert-butyl ether and separated by LC/MS/MS using a Phenomenex Curosil-PFP column (250 mm x 4.6 mm ID, dp 5 microm) with a mobile phase of methanol-water (95:5, v/v). The analytes were monitored with atmospheric pressure chemical ionization (APCI) by selected reaction monitoring (SRM) mode. The linear calibration curves covered a concentration range of 0.04-20.0 ng/mL with lower limit of quantification (LLOQ) at 0.04 ng/mL. The mean extraction recovery of allylestrenol was greater than 81.8%. The intra- and inter-day precisions were less than 1.3% and 3.1% respectively, determined from quality control (QC) samples of three representative concentrations. The method has been successfully applied to determining the plasma concentration of allylestrenol and a clinical pharmacokinetics study in healthy Chinese female volunteers.
authors.affiliation: Department of Pharmacy, Xijing Hospital, The Fourth Military Medical University, Xi'an, Shaanxi, China.
authors.forename: Xiaopeng
authors.initials: X
authors.lastname: Shi
authors.forename: Yin
authors.initials: Y
authors.lastname: Wu
authors.forename: Taijun
authors.initials: T
authors.lastname: Hang
authors.forename: Xiaofeng
authors.initials: X
authors.lastname: Xu
authors.forename: Likun
authors.initials: L
authors.lastname: Ding
authors.forename: Yun
authors.initials: Y
authors.lastname: Tian
authors.forename: Aidong
authors.initials: A
authors.lastname: Wen
mesh_terms: D000328:Adult; D000500:Allylestrenol / Q000493:pharmacokinetics*; D044466:Asian People; D002681:China; D002853:Chromatography, Liquid / Q000379:methods*; D004355:Drug Stability; D005260:Female; D006801:Humans; D015203:Reproducibility of Results; D012680:Sensitivity and Specificity; D053719:Tandem Mass Spectrometry / Q000379:methods*
chemical_list: D000500:Allylestrenol