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HPLC-UV法测定广东王不留行中槲皮素含量

曾颂, 韩秀奇, 李书渊*   

  1. 广东药学院 中药学院, 广东 广州 510006
  • 收稿日期:2012-08-13 修回日期:2012-11-05 出版日期:2013-01-20 发布日期:2013-01-20
  • 通讯作者: 李书渊*

Quantification of the active ingredient quercetin of “Guangdong Wang-bu-liu-xing” by high-performance liquid chromatography with UV detection

Song Zeng, Xiuqi Han, Shuyuan Li*   

  1. School of Chinese Traditional Medicine, Guangdong Pharmaceutical University, Guangzhou 510006, China

  • Received:2012-08-13 Revised:2012-11-05 Online:2013-01-20 Published:2013-01-20
  • Contact: Shuyuan Li*

摘要: 本文首次建立了广东王不留行活性成分水解后槲皮素的含量测定方法, 为评价广东王不留行的质量和制定其质量标准提供依据。采用HPLC-UV法, 以C18反相色谱柱, 甲醇-0.4% (v/v) 磷酸溶液 (50:50, v/v) 为流动相等度洗脱, 检测波长为360 nm。对11批广东王不留行样品进行测定, 实验证明该含量测定方法分离效果好、灵敏度高、重复性好, 平均回收率为99%, 可作为广东王不留行的质量控制方法。

关键词: 广东王不留行, 含量测定, 高效液相色谱, 槲皮素

Abstract:

High-performance liquid chromatography with UV detection was used for the quantification of the flavonoid quercetin, the active compound found in “Guangdong Wang-bu-liu-xing”. The method was developed and demonstrated to provide superior performance over other commonly documented methods. This HPLC assay achieved high specificity through the use of a reversed-phase C18 column eluted with a mobile phase of methanol-0.4% (v/v) phosphoric acid (50:50, v/v) over the course of 30 min. UV detection at 360 nm was used. This analytical method provided excellent precision and a mean recovery of 99%, demonstrated by repeated analysis of 11 sample groups. Because of its high performance and simplicity, this HPLC assay can be readily utilized as a practical method for the quality control of active compounds extracted from Guangdong Wang-bu-liu-xing.

Key words: Guangdong Wang-bu-liu-xing, Quantification, HPLC, Quercetin

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Supporting: *Corresponding author. Tel.: 86-020-39352327