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目的检测果实类药材中的黄曲霉毒素,了解其污染情况。方法样品经70%甲醇提取、免疫亲和柱净化后,用高效液相色谱-柱后衍生-荧光检测器进行分析测定果实类药材中4种黄曲霉毒素(G2、G1、B2、B1)的含量。结果检测的25批次的药材中,共6个批次样品检出黄曲霉毒素,检出率为24%;桃仁和莲子2个批次样品黄曲霉毒素B1含量超过5μg.kg-1,阳性率为8%。结论果实类药材中黄曲霉毒素的含量大部分低于国家关于黄曲霉毒素的含量标准,但尚需要继续研究扩大监测品种。
Objective To detect aflatoxins in fruits and herbs and understand their pollution. Methods The samples were extracted with 70% methanol and purified by immunoaffinity column. The contents of four aflatoxins (G2, G1, B2, B1) in fruits were determined by high performance liquid chromatography with post-column derivatization- content. Results Among the 25 batches tested, aflatoxin was detected in 6 batches of samples with the detection rate of 24%. The contents of aflatoxin B1 in two batches of peach and lotus seeds exceeded 5 μg · kg-1, The rate is 8%. Conclusion The content of aflatoxins in fruits and vegetables is mostly lower than the national standard of aflatoxins, but further research is needed to expand the monitoring varieties.