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高效液相色谱法同时测定三黄片中黄芩苷、小檗碱和大黄酸的含量

李奕, 高建平, 许旭*   

  1. 1.中国科学院上海有机化学研究所金属化学国家重点实验室分析测试中心, 上海 200032;
    2.上海中医药大学中药学院, 上海 201203
  • 收稿日期:2005-02-02 修回日期:2005-05-10 出版日期:2005-06-15 发布日期:2005-06-15
  • 通讯作者: 许旭*

Simultaneous Determination of Baicalin, Berberine and Rhein by HPLC in Traditional Chinese Patent Medicine Sanhuang Tablets

LI Yi, GAO Jian-Ping, XU Xu*   

  1. 1.Laboratory of Analytical Chemistry, State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, CAS, Shanghai 200032, China; Graduate School of Chinese Academy of Sciences, Beijing 100039, China;
    2.School of Pharmacy, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China
  • Received:2005-02-02 Revised:2005-05-10 Online:2005-06-15 Published:2005-06-15
  • Contact: XU Xu*

摘要: 目的 建立一种反相液相色谱法用于三黄片中黄芩苷、小檗碱和大黄酸含量的同时测定。方法 采用Kromasil C18色谱柱, 0.02 mol·L-1 H3PO4(三乙胺调节pH = 6.78)乙腈甲醇(40:9:7)为流动相, 检测波长254 nm, 流速1.0 mL·min-1。考虑到酸性化合物和碱性化合物之间可能的相互作用, 进行回收率实验时三个标准品被分别加入样品溶液中, 并且将体积扩大了一倍。结果 三个化合物的峰面积与浓度之间都呈现很好的线性关系, 线性相关系数均超过0.9998。各成分的平均回收率分别为黄芩苷96.1%(RSD = 2.1%)、小檗碱98.5%(RSD = 2.5%)、大黄酸101.5%(RSD = 1.3%)结论 该方法可用于三黄片质量的全面评价。

关键词: 三黄片, 三黄片, 三黄片, 黄芩苷, 黄芩苷, 黄芩苷, 大黄酸, 大黄酸, 大黄酸, 小檗碱, 小檗碱, 小檗碱, 高效液相色谱法, 高效液相色谱法, 高效液相色谱法

Abstract: Aim To establish a reversed phase liquid chromatographic method for simultaneous determination of three main medicinal constituents, baicalin, berberine and rhein, in Sanhuang tablets. Methods The separation was performed on a Kromasil C18 column with TEA-adjusted 0.02 mol·L-1 H3PO4 (pH 6.78)-acetonitrile-methanol (40:9:7) as mobile phase at a flow-rate of 1.0 mL·min-1, with detection at 254 nm. Considering interaction between acidic and alkaline compounds, three standard markers were added respectively and the volume of sample solution was doubled in recovery experiments. Results Three regression equations revealed excellent linear relationship between the peak areas and concentrations and the correlation coefficients all surpassed 0.999 8. The average recovery was 96.1% (RSD = 2.1%) baicalin, 98.5% (RSD = 2.4%) for berberine, and 101.5% (RSD = 1.3%) for rhein. Conclusion The method developed can be used to control the quality of Sanhuang tablets comprehensively.

Key words: Sanhuang tablets, Sanhuang tablets, baicalin, baicalin, rhein, rhein, berberine, berberine, HPLC, HPLC

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Supporting: Foundation item: Innovation Fund of Chinese Academy of Sciences (KGCX2-SW-213-05).
*Corresponding author. Tel.: 86-21-54925320