title: Determination of anethole trithione in human plasma using high performance liquid chromatography coupled with tandem mass spectrometric detection.
abstract: A rapid, sensitive and reliable high performance liquid chromatographic method coupled with tandem mass spectrometry via electrospray ionization (ESI) source (HPLC-MS/MS) has been developed and validated for the determination of anethole trithione (ATT) in human plasma. Diazepam was employed as the internal standard (IS). Sample extracts following liquid-liquid extraction were injected into the HPLC-MS/MS system. The analyte and IS were eluted isocratically on a C18 column, with a mobile phase consisting of methanol and aqueous ammonium acetate solution (5 mM) (80:20, v/v) . The ions were detected by a triple quadrupole mass spectrometric detector in the positive mode. Quantification was performed using selected reaction monitoring (SRM) of the transitions m/z 240.88-->197.91 and m/z 285.01-->193.02 for ATT and for the IS, respectively. The analysis time for each run was 5.0 min. The calibration curve fitted well over the concentration range of 0.02-5 ng mL(-1), with the regression equation y = 1.1014x + 0.0003631, r = 0.9992. The intra-batch and inter-batch R.S.D.% were less than 15% at all concentration levels within the calibration range. The recoveries were more than 80%. The present method provides a modern, rapid and robust procedure for the pharmacokinetic study of ATT. Some important pharmacokinetic parameters of ATT in healthy Chinese volunteers are also given for the first time.
authors.affiliation: Key Laboratory of Drug Quality Control and Pharmacovigilance (China Pharmaceutical University), Ministry of Education, Nanjing 210009, PR China.
authors.forename: Tianmin
authors.initials: T
authors.lastname: Li
authors.forename: Zunjian
authors.initials: Z
authors.lastname: Zhang
authors.forename: Haoyan
authors.initials: H
authors.lastname: Jiao
authors.forename: Lu
authors.initials: L
authors.lastname: Zhang
authors.forename: Yuan
authors.initials: Y
authors.lastname: Tian
authors.forename: Yun
authors.initials: Y
authors.lastname: Chen
authors.forename: Xiaoyang
authors.initials: X
authors.lastname: Pang
authors.forename: Jie
authors.initials: J
authors.lastname: Zhuang
mesh_terms: D000328:Adult; D000781:Anethole Trithione / Q000097:blood* / Q000493:pharmacokinetics; D002851:Chromatography, High Pressure Liquid; D006801:Humans; D008297:Male; D015203:Reproducibility of Results; D021241:Spectrometry, Mass, Electrospray Ionization; D053719:Tandem Mass Spectrometry
chemical_list: D000781:Anethole Trithione