超高压液相色谱-串联质谱法测定食用植物油中4种黄曲霉毒素B1、B2、G1、G2

Journal of Food Safety & Quality(2012)

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Abstract
目的建立测定食用植物油中黄曲霉毒素B1、B2、G1、G2的优质高效的分析方法。方法采用超高压液相色谱-串联质谱(UPLC-MS/MS)法。样品用乙酸乙酯提取,弗罗里硅土小柱净化,经C18色谱柱分离,以电喷雾离子源在正离子多反应监测(MRM)模式下进行测定,外标法定量。结果黄曲霉毒素B1、B2、G1、G2的检出限均为0.04μg/kg,定量限均为0.10μg/kg,在0.1~20μg/L范围内线性关系良好,相关系数r分别为0.9986,0.9986,0.9992,0.9996。在0.1~5.0μg/kg加标水平内黄曲霉毒素B1、B2、G1、G2的回收率为79.1%~94.6%,RSD为5.0%~9.6%。结论该方法实用、准确、灵敏,适用于食用植物油中黄曲霉毒素残留量的测定。
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Key words
edible vegetable oil,aflatoxin,ultra pressure liquid chromatography-tandem mass spectrometry(uplc-ms/ms),liquid chromatography,analytical methods,mass spectrometry,aflatoxins,mycotoxins,food contamination
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