Journal
BIOMEDICAL CHROMATOGRAPHY
Volume 21, Issue 9, Pages 883-889Publisher
JOHN WILEY & SONS LTD
DOI: 10.1002/bmc.850
Keywords
clopidogrel; LC/MS/MS; pharmacokinetics
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A rapid and sensitive LC/MS/MS assay was developed and validated for the determination of clopidogrel in human plasma. Clopidogrel was extracted by single liquid-liquid extraction with pentane, and chromatographic separations were achieved on a C, column. The method was validated to demonstrate the specificity, linearity, recovery, lower limit of quantification (LLOQ), stability, accuracy and precision. The multiple reaction monitoring was based on m/z transition of 322.2 -> 211.9 for clopidogrel and 264.1 -> 125.1 for ticlopidine (internal standard). The total analytical run time was relatively short (3 min), and the LLOQ was 10 pg/mL using 0.5 mL of human plasma. The assay was linear over a concentration range from 10 to 10,000 pg/ mL (r > 0.999). The intra- and inter-day accuracies were 101.3-108.8 and 98.4-103.5%, respectively, and the intra- and inter-day assay precisions were 1.9-5.5 and 4.4-8.1%, respectively. The developed assay method was applied to a pharmacokinetic study in human volunteers after oral administration of clopidogrel at a dose of 150 mg. Copyright (c) 2007 John Wiley & Sons, Ltd.
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