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大鼠灌胃蒙药蓝盆花提取物后血浆中5种黄酮类成分的UHPLC-MS/MS测定及药动学研究
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摘要
目的:建立一种快速、选择性好、灵敏度高的UHPLC-MS/MS方法用于大鼠灌胃蒙药蓝盆花提取物后血浆中5种黄酮类成分的测定。方法:血浆样品的制备采用一步蛋白沉淀法,样品分析采用月旭C18柱(1.7 mn×100 mn,1.7μm。流动相采用乙腈-0.1%甲酸水梯度洗脱。所有的分析物及内标采取负离子模式多反应监测模式:芹菜素(m/z269.0→117.2),大波斯菊苷(m/z 431.0→268.0),芦丁(m/z 285.0→133.2),木犀草甙(m/z 447.0→285.0),异荭草素(m/z 447.1→296.8),人参皂苷-Rg1(m/z 931.4→637.2)。结果:在线性范围内,所有的分析物表现出良好的线性关系(>0.99)。日内和日间精密度<13.4%,方法准确度在2.3~14.1%之间,所有的数据都符合生物分析的最低要求。样品的平均回收率在75.1%-104.1%之间,基质对样品分析无影响。结论:该方法被成功地应用于大鼠灌胃蒙药蓝盆花提取物后血浆中5种黄酮类成分的UHPLC-MS/MS测定及药动学研究。
Objective A rapid,selective and sensitive method using ultra high performance liquid chromatography tandem mass spectrometry was developed and validated for the determination and pharmacokinetic investigation of 5 flavonoids.Methods Plasma sample preparation was achieved through a one-step liquid-liquid extraction method.Plasma samples were analyzed using a Welch C_(18) column(1.7 mm× 100 mm,1.7 urn) with a line gradient elution using acetonitrile and 0.1%acetic acid aqueous solution as the mobile phase.All analytes and ginsenosides-Rg1 were tested in negative ionization mode using multiple reaction monitoring(MRM) of the transitions at m/z 269.0→117.2(apigenin),m/z 431.0→268.0(cosmosiin),m/z 285.0→133.2(luteolin),m/z 447.0→285.0(luteoloside),m/z 447.1→296.8(isoorientin) and m/z 931.4→637.2(IS),respectively.Results The method was linear for all analytes over the investigated ranges,with all correlation coefficients >0.99.The intra- and inter-day precisions(RSD,%)were <13.4%,and accuracy(RE,%) ranged from 2.3 to 14.1%,whose data were within the acceptable limits.The mean extraction recoveries of the analytes from rat plasma were within 75.1%-104.1%,and no notable matrix effect was observed.Conciution This validated method was successfully applied in pharmacokinetic of five chemical ingredients study after oral administration of Scabiosae Comosae Flos extract.
引文
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