LC–ESI–MS Determination of Flupentixol in Human Plasma
Chromatographia(2008)
摘要
Flupentixol and an internal standard, loperamide were extracted from human plasma by liquid–liquid extraction and analyzed on a Thermo Hypersil HyPURITY C18 column, with 10 mM ammonium acetate–acetonitrile–methanol (26:62:12, v/v/v ) as mobile phase, coupled with electrospray ionization mass spectrometry (ESI–MS). The protonated analyte was quantified by selected-ion monitoring (SIM) with a quadrupole mass spectrometer in a positive-ion mode. The calibration curve was linear ( r = 0.9990) over the concentration range: 0.039–2.5 ng mL −1 . Intra-day and inter-day precision (RSD%) were less than 13.05%. The established method was successfully applied for the determination of pharmacokinetics of flupentixol in human plasma.
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关键词
Column liquid chromatography,Electrospray ionization–mass spectrometry,Equivalence,Pharmacokinetics,Flupentixol in human plasma
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