http://jcps.bjmu.edu.cn

• 【研究论文】 • 上一篇    下一篇

LC-ESI-MS法测定人血浆中紫杉醇的浓度及其在药代动力学中的应用

钱隽, 王漪璇, 苏圣民, 郁韵秋*   

  1. 1. 复旦大学 药学院, 上海 201203
    2. 复旦大学附属肿瘤医院, 上海 200032
  • 收稿日期:2012-02-24 修回日期:2012-05-10 出版日期:2012-06-25 发布日期:2012-06-25
  • 通讯作者: 郁韵秋*

Determination of paclitaxel in human plasma by LC-ESI-MS and its application in a pharmacokinetic study

Jun Qian, Yi-Xuan Wang, Sheng-Min Su, Yun-Qiu Yu*   

  1. 1. School of Pharmacy, Fudan University, Shanghai 201203, China
    2. Shanghai Cancer Hospital, Fudan University, Shanghai 200032, China
  • Received:2012-02-24 Revised:2012-05-10 Online:2012-06-25 Published:2012-06-25
  • Contact: Yun-Qiu Yu*

摘要: 建立了一种灵敏度高、特异性好的高效液相色谱-电喷雾质谱法 (LC-ESI-MS) 测定人血浆中紫杉醇浓度的方法。采用一步液液萃取法进行血浆样品预处理, 提取液为甲基叔丁基醚, 内标选用炔诺酮。色谱柱为Zorbax SB-C18 柱 (100 mm×2.1 mm, 3.5 μm, Agilent), 流动相为甲醇–0.2 mmol/L甲酸铵缓冲盐溶液 (包含0.1%甲酸), 采用梯度洗脱。选择离子监测 (SIM) 的目标离子为紫杉醇的[M+Na]+ m/z 876.5和内标的[M+H]+ m/z 299.4。方法学验证表明线性范围是1.0-400 ng/mL (r>0.998), 最低定量限为1.0 ng/mL, 方法的批内和批间精密度都小于9.0%, 准确度在6.8%以内。此方法已成功应用于紫杉醇脂质体注射液在患者体内的药动学研究。

关键词: 紫杉醇, LC-MS, 药代动力学

Abstract:

A sensitive and selective method has been developed and validated for the quantitation of paclitaxel in human plasma by liquid chromatography-electrospray ionization mass spectrometry (LC-ESI-MS). Paclitaxel and norethindrone (used as internal standard, I.S.) were extracted from human plasma by a one-step liquid-liquid extraction with t-butyl methyl ether. Separation on a Zorbax SB-C18 column (100 mm×2.1 mm, 3.5 μm, Agilent) was achieved by gradient elution with methanol and 0.2 mmol/L ammonium formate containing 0.1% formic acid. The selected-ion monitoring (SIM) targeted ions of [M+Na]+ at m/z 876.5 for paclitaxel and [M+H]+ at m/z 299.4 for I.S. The assay was validated in the range of 1.0-400 ng/mL (r>0.998) with LLOQ of 1.0 ng/mL. Intra- and inter-day precisions were all less than 9.0%, with accuracies of ±6.8%. The method was successfully applied to evaluate the pharmacokinetics of paclitaxel liposome for injection in patients.

Key words: Paclitaxel, LC-MS, Pharmacokinetics

中图分类号: 

Supporting:

*Corresponding author. Tel.: 86-21-51980055