Determination and Pharmacokinetic Study of Propofol in Rat Plasma

Determination and Pharmacokinetic Study of Propofol in Rat Plasma

Latin American Journal of Pharmacy Regular article (formerly Acta Farmacéutica Bonaerense) Received: October 29, 2014 Revised version: December 8, 2014 Lat. Am. J. Pharm. 34 (2): 296-300 (2015) Accepted: December 9, 2014 Determination and Pharmacokinetic Study of Propofol in Rat Plasma Sheng-yang CHEN 1, Geng-fu WANG 1, Yong-qiang ZHANG 1, Xiao-ran ZHANG 1, Jun LIU 1, Jian-min TIAN 1, & Jie HU 2 * 1 The First Affiliated Hospital of Xinxiang Medical University, Weihui, 453100, China 2 Luoyang Central Hospital of Affiliated to Zhengzhou University, Luoyang 471003, China SUMMARY. In this study, a simple, rapid and sensitive liquid chromatography tandem mass spectrometry (LC-MS/MS) method is described for determination of propofol in rat plasma samples using chlorzoxa- zone as the internal standard (IS) from pharmacokinetic assays. Sample preparation was accomplished through liquid-liquid extraction with ethyl acetate, and chromatographic separation was performed on an Acquity BEH C18 column (2.1 mm × 50 mm, 1.7 μm) with gradient profile at a flow of 0.4 mL/min. The linearity of this method was found to be within the concentration range of 10-1000 ng/mL for propofol in rat plasma. Only 1.5 min was needed for an analytical run. The method was applied to a pharmacokinetic study of propofol in rats. RESUMEN. En este estudio se describe un método simple, rápido y sensible de cromatografía líquida con espec- trometría de masas en tándem (LC-MS/MS) para la determinación de propofol en muestras de plasma de rata uti- lizando clorzoxazona como estándar interno (IS) a partir de ensayos farmacocinéticos. La preparación de la muestra se llevó a cabo a través de la extracción líquido-líquido con acetato de etilo, y la separación cromatográ- fica se realizó en una columna Acquity BEH C18 (2,1 mm × 50 mm, 1,7 μm) con perfil de gradiente a un caudal de 0,4 mL/min. La linealidad de este método estuvo dentro del intervalo de concentración de 10-1000 ng/mL pa- ra el propofol en plasma de rata. Se necesitan sólo 1,5 min para una serie de análisis. El método se aplicó a un es- tudio farmacocinético de propofol en ratas. KEY WORDS: LC-MS/MS, Pharmacokinetic, Propofol, Rat plasma. * Author to whom correspondence should be addressed. E-mail: [email protected] ISSN 0326 2383 (printed ed.) 296 ISSN 2362-3853 (on line ed.).

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