目的：建立测定中药材中黄曲霉毒素B1，B2，G1，G2的高效液相色谱分离-串联三重四级杆质谱分析（HPLC-MS/MS）法。方法中药材样本经70%甲醇溶液提取，并采用免疫亲和柱净化和浓缩后，以HPLC-MS/MS对4个黄曲霉毒素的含量进行测定。结果黄曲霉毒素G2和B2进样量在0.3~30 pg、黄曲霉毒素G1和B1进样量在1~100 pg范围内与峰面积呈良好线性关系( r﹥0.9990)，加样回收率为75.33%~92.29%。结论该法速度快、操作简便、灵敏度高、重复性好，适用于中药材中霉菌毒素的检测。%Objective To establish a HPLC combined with electro spray ionization triple quadrupole tandem mass spectrometry(HPLC-MS/MS)method for determining aflatoxins B1,B2,G1 and G2 in Chinese medicinal herbs. Methods After extraction by 70% methanol and purification and concentration by immunoaffinity column in the Chinese medicinal herb sample,the contents of aflatoxins B1,B2,G1 and G2 were analyzed by HPLC-MS/MS. Results The linear range was 0. 3-30 pg for aflatoxins G2 and B2,1-100 pg for aflatox-ins G1 and B1 ( r ﹥ 0. 999 0 ) . The recovery rate was 75. 33% -92. 29%. Conclusion The method is accurate,simple to operate,highly sensitive,better reproducible and suitable for the aflatoxins determination of Chinese medicinal herbs.
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