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RP-HPLC 法测定微乳中水飞蓟素的含量

李馨儒, 李艳芳, 周艳霞, 李晓燕, 刘艳*   

  1. 1. 北京大学 药学院 药剂学系, 北京 100191
    2. 北京大学 第三医院中心实验室, 北京 100191
  • 收稿日期:2008-10-15 修回日期:2009-05-10 出版日期:2009-06-15 发布日期:2009-06-15
  • 通讯作者: 刘艳*

Determination of silymarin in microemulsion by RP-HPLC

Xin-Ru Li, Yan-Fang Li, Yan-Xia Zhou, Xiao-Yan Li, Yan Liu*   

  1. 1. Department of Pharmaceutics, School of Pharmaceutical Sciences, Peking University, Beijing 100191, China
    2. Central laboratory, Third Hospital, Peking University, Beijing 100191, China
  • Received:2008-10-15 Revised:2009-05-10 Online:2009-06-15 Published:2009-06-15
  • Contact: Yan Liu*

摘要:

建立测定微乳中水飞蓟素含量的反相高效液相色谱法。采用ODS C18色谱柱, 检测波长为288 nm, 流动相为甲醇-水-冰醋酸(42:58:0.5, v/v/v), 流速为1 mL/min。水飞蓟宾标准曲线的线性范围为10-1000 μg/mL, 平均回收率为99.0 %-100.7%, 日内和日间精密度均低于1.6%。该法简单、快速、精确、准确, 可用于水飞蓟素微乳制剂质量控制要求。

关键词: 水飞蓟素, 水飞蓟宾, 微乳, 反相高效液相色谱法

Abstract:

We established a RP-HPLC method for the analysis of silymarin in microemulsion. Silymarin was separated using a ODS C18 column and monitored at the wavelength 288 nm. The mobile phase consisting of methanol-water-acetic acid (42:58:0.5, v/v/v) was pumped at a flow rate of 1.0 mL/min. The linear range of calibration curve was 10-1000 μg/mL. The average recovery was 99.0%-100.7% for silybin isomers. The RSD values of inter-day and intra-day assays were lower than 1.6% for silybin isomers. The method is simple, rapid, reproducible and precise for the quantitative determination of silymarin in microemulsion.

Key words: Silymarin, Silymarin, Silybin, Silybin, Microemulsion, Microemulsion, RP-HPLC, RP-HPLC

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Supporting: *Corresponding author. Tel.: 86-10-82801508;

e-mail: yanliu@bjmu.edu.cn