A Sensitive Ultra­performance Liquid Chromatography–Tandem Mass Spectrometric Method for Determination of Secalonic Acid F in Rat Plasma and Its Application to Pharmacokinetic Study

化学 色谱法 选择性反应监测 甲酸 萃取(化学) 电喷雾电离 三级四极质谱仪 校准曲线 分析物 质谱法 串联质谱法 高效液相色谱法 乙酸乙酯 液相色谱-质谱法 检出限 分析化学(期刊)
作者
Lei Ji,Pengyue Wang,Qingyun Wan,Gege Wang,Weizhong Liu,Desheng Liu
出处
期刊:Journal of Chromatographic Science [Oxford University Press]
卷期号:62 (3): 281-286
标识
DOI:10.1093/chromsci/bmad030
摘要

Abstract Secalonic acid F (SAF) is a fungal secondary metabolite exhibited interesting pharmacological effect. In this study, a simple and sensitive ultra-performance liquid chromatography–tandem mass spectrometric (UPLC–MS/MS) method was developed and validated for the determination of SAF in rat plasma. Emodin was selected as the internal standard (IS), and plasma samples were prepared by liquid–liquid extraction with ethyl acetate. Chromatographic separation was operated on an Agilent SB-C18 column, and the mobile phase was a mixture of 0.5% formic acid in water and methanol (V:V = 20:80) at a flow rate of 0.3 mL/min. Detection was carried out with a 6460 triple-quadrupole mass spectrometer using electrospray ionization in the multiple-reaction monitoring mode. The MS/MS ion transitions monitored were m/z 639.3 → 415.4 and 269.0 → 225.1 for SAF and IS, respectively. Results showed the calibration curve of SAF was linear in the range of 2–500 ng·mL−1 with the correlation coefficient > 0.99. The matrix effect, extraction recovery, dilution effect, intraday and inter-day precision and accuracy were all in acceptable limits. The analytes were also stable under different conditions. The validated method was successfully applied to a pharmacokinetic study after oral administration in Sprague-Dawley rats at a dose of 10 mg/kg.
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