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人血浆中依普利酮的LC-MS/MS测定研究

Determination of eplerenone in human plasma by LC-MS/MS

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【作者】 陈静潘春燕王璐马鹏程杭太俊宋敏

【Author】 CHEN Jing;PAN Chun-yan;WANG Lu;MA Peng-cheng;HANG Tai-jun;SONG Min;Department of Pharmaceutical Analysis,China Pharmaceutical University;Institute of Dermatology,Chinese Academy of Medical Sciences;

【机构】 中国药科大学药物分析教研室中国医学科学院皮肤病医院

【摘要】 目的:建立测定人血浆中依普利酮浓度的LC-MS/MS方法,并应用于依普利酮片在中国健康人体内的药动学研究。方法:血浆采用EDTANa2作为稳定剂,并用预冰水浴冷却乙腈沉淀蛋白处理样品;以0.05%甲酸0.1%醋酸铵溶液-0.05%甲酸甲醇溶液为流动相,线性梯度洗脱,采用Wondasil-C18色谱柱(4.6 mm×150 mm,5μm)进行分离;多反应离子监测[M+H]+离子通道分别为m/z 415.2→m/z 163.1(依普利酮)、m/z 433.2→m/z 337.4(依普利酮酸)和m/z 393.1→m/z 355.1(内标地塞米松)。结果:建立的LC-MS/MS法测定血浆中依普利酮质量浓度在10.002 500 ng·mL-1范围内线性关系良好,最低定量限为10.00 ng·mL-1,经方法验证符合生物样本分析的要求。12名受试者单次给药25、50、100 mg依普利酮后,Cmax分别为(505.7±133.1)、(946.6±226.3)、(1 847±433)ng·mL-1,Tmax分别为(1.3±0.5)、(1.3±0.8)、(1.6±0.8)h,t1/2分别为(2.8±0.8)、(2.9±0.8)、(3.3±0.7)h,AUC0-24分别为(2 310±728)、(4 889±1 808)、(9 691±2 733)ng·h·mL-1,AUC0-∞分别为(2 395±749)、(5 051±1 789)、(9 788±2 751)ng·h·mL-1。结论:建立的血浆中依普利酮LC-MS/MS测定法可用于依普利酮的临床药动学研究。

【Abstract】 Objective:To establish an LC-MS/MS method for the determination and pharmacokinetic study of eplerenone in human plasma.Methods: EDTANa2 was added in plasma samples to alleviate the interconversion between eplerenone and eplerenone acid.The samples were separated by Wondasil-C18(4.6 mm×150 mm,5 μm) column with a linear gradient elution of a mobile phase consisting of 0.1% ammonium acetate solution and methanol both containing 0.05% formic acid after protein precipitation by chilly acetonitrile. The analytes were detected by multiple reaction monitoring of the[M+H]+ ions with transitions of m/z 415.2 →m/z 163.1,m/z 433.2 →m/z 337.4 and m/z 393.1 → m/z 355.1 for eplerenone,eplerenone acid and dexamethasone,respectively.Results: The established LC-MS/MS method showed good linearity within the concentration range of 10.00-2 500 ng·mL-1 with a LLOQ of 10.00 ng·mL-1 for eplerenone in human plasma.The method validation met the criteria for bio-samples determination.The main pharmacokinetic parameters of single-dose of 25,50 and 100 mg of eplerenone in 12 volunteers were as follows: Cmax(505.7±133.1),(946.6±226.3) and(1 847±433) ng· mL-1,Tmax(1.3±0.5),(1.3±0.8) and(1.6±0.8) h,t1/2(2.8±0.8),(2.9±0.8) and(3.3±0.7) h,AUC0-24(2 310±728),(4 889±1 808) and(9 691±2 733) ng·h·mL-1,AUC0- ∞(2 395±749),(5 051±1 789) and(9 788±2 751) ng·h·mL-1. Conclusion: The established LC-MS/MS method can be applied in the pharmacokinetic study of eplerenone.

  • 【文献出处】 药物分析杂志 ,Chinese Journal of Pharmaceutical Analysis , 编辑部邮箱 ,2016年11期
  • 【分类号】R969
  • 【被引频次】3
  • 【下载频次】188
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