首都医科大学学报 ›› 2011, Vol. 32 ›› Issue (3): 379-383.

• 基础研究 • 上一篇    下一篇

检测中草药提取物中黄曲霉毒素的高灵敏方法

赵淑锐1,徐艳霞2,徐菲3,郜文3*   

  1. 1. 首都医科大学医学实验与测试中心现代药学实验与测试室,北京 100069; 2. 首都医科大学化学生物学与药学院实验中心,北京 100069;3. 首都医科大学产业经营与管理中心,北京 100069
  • 收稿日期:1900-01-01 修回日期:1900-01-01 出版日期:2011-06-21 发布日期:2011-06-21
  • 通讯作者: 郜文

High sensitive method for the detection of aflatoxins in extract from Chinese medicinal herb

ZHAO Shu-rui1, XU Yan-xia2, XU Fei3, GAO Wen3*   

  1. 1. Pharmaceutical Experimental Test Chamber, Medical Experiment and Test Center, Capital Medical University, Beijing 100069,China; 2. Experiment Center, College of Pharmaceutical Sciences, Capital Medical University, Beijing 100069, China;3. Centre for Industrial Management and Administration, Capital Medical University, Beijing 100069, China
  • Received:1900-01-01 Revised:1900-01-01 Online:2011-06-21 Published:2011-06-21
  • Contact: GAO Wen

摘要:

目的 建立中草药提取物中黄曲霉毒素B1,B2,G1,G2的高灵敏测定方法。
方法 样品经提取和过滤后用免疫亲和柱净化和衍生,然后采用不同比例(15%~30%)乙腈/水梯度洗脱,用具荧光检测器的高效液相色谱仪检测。
结果 检出限:黄曲霉素G1为0.09 ppb;B2为0.02 ppb;B1为0.03 ppb;G2为0.04 ppb,均低于文献报道的检出限,样品加标回收率为90%~103.2%。
结论 该方法简单、快速、准确、灵敏度高,可用于中药中黄曲霉毒素含量的测定。

关键词: 高效液相色谱, 柱前衍生, 黄曲霉毒素B1, B2, G1, G2, 中草药提取物

Abstract:

Objective To establish a rapid method of high performance liquid chromatography(HPLC) plus precolumn derivatization for the determination of aflatoxins(AFT) in Chinese medicine herbal extract.
Methods The Chinese medicinal herbs were extracted with methanol and the extract was cleaned up with a solid phase extraction column. The analytes were eluted on C18 column with different proportion(15%~30%) acetonitrile, water gradient elution.
Results The spiked recoveries were 90%~103.2%. The AFT limits of detection were 0.09 ppb(G1), 0.02 ppb(B2), 0.03 ppb(B1), 0.04 ppb(G2). The results were lower than those of the previous study.
Conclusion The modified method was validated by the analysis of a certified reference material and shown to be useful for the determination of aflatoxins in herbal samples of high acidity.

Key words: high performance liquid chromatography, pre-column derivatization, aflatoxins B1, B2, G1, G2, herbal extracts

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