期刊
JOURNAL OF PHARMACEUTICAL AND BIOMEDICAL ANALYSIS
卷 96, 期 -, 页码 197-206出版社
ELSEVIER
DOI: 10.1016/j.jpba.2014.03.037
关键词
Atropine; Scopolamine; Plasma; Validation; LC-MS/MS
资金
- Slovenian Research Agency [P1-0153]
A liquid chromatography-tandem mass spectrometry (LC-MS/MS) method for the determination of atropine and scopolamine in 100 mu L human plasma was developed and validated. Sample pretreatment consisted of protein precipitation with acetonitrile followed by a concentration step. Analytes and levobupivacaine (internal standard) were separated on a Zorbax XDB-CN column (75 mm x 4.6 mm i.d., 3.5 mu m) with gradient elution (purified water, acetonitrile, formic acid). The triple quadrupole MS was operated in ESI positive mode. Matrix effect was estimated for deproteinised plasma samples. Selected reaction monitoring (SRM) was used for quantification in the range of 0.10-50.00 ng/mL. Interday precision for both tropanes and intraday precision for atropine was <10%, intraday precision for scopolamine was <14% and <18% at lower limit of quantification (LLOQ). Mean interday and intraday accuracies for atropine were within +/- 7% and for scopolamine within +/- 11%. The method can be used for determination of therapeutic and toxic levels of both compounds and has been successfully applied to a study of pharmacodynamic and pharmacokinetic properties of tropanes, where plasma samples of volunteers were collected at fixed time intervals after ingestion of a buckwheat meal, spiked with five low doses of tropanes. (C) 2014 Elsevier B.V. All rights reserved.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据