采用稳定同位素稀释法的LC-MS/MS法检测并定量美国超市中婴儿谷类食品中的霉菌毒素

Detection and quantitation of mycotoxins in infant cereals in the US market by LC-MS/MS using a stable isotope dilution assay

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中文摘要:本研究旨在开发一种采用快速液相色谱-串联质谱(LC-MS/MS)法同时检测婴儿谷类食品中的黄曲霉毒素B1、B2、G1、G2、赭曲霉毒素A、伏马菌素B1和B1、玉米赤霉烯酮、脱氧雪腐镰刀菌烯醇、T-2毒素及HT-2毒素的分析方法,并调查从美国购买的婴儿谷类食品中这11种霉菌毒素的存在情况和数量。研究结果认为应该对用于婴儿的谷类食品进行霉菌毒素含量的常规监测。
外文摘要:The aim of this study was to develop an analytical method for the simultaneous determination of aflatoxins B1, B2, G1, G2, ochratoxin A, fumonisins B1 and B2, zearalenone, deoxynivalenol, T-2 toxin, and HT-2 toxin in infant cereals using rapid liquid chromatography-tandem mass spectrometry (LC-MS/MS). Another goal was to survey infant cereals purchased in the United States for the presence and amounts of 11 mycotoxins. Separation of the mycotoxins was accomplished using ultra-high performance liquid chromatography (UHPLC) with 13C]-uniformly labeled mycotoxins were added to the sample extracts prior to LC-MS/MS analysis. Overall recoveries of mycotoxins were 81–130% in rice, 70–119% in barley, 87–123% in oat, and 82–127% in mixed-grain cereals with lower recoveries for fumonisins B1 and B2, (33–67%) at three spiking levels (12.5, 25 and 50 ng/g). The relative standard deviation was 1, ochratoxin A and zearalenone. Results of this study suggest that cereals intended for infants should be routinely monitored for mycotoxin content.
外文关键词::Multi-mycotoxin;Infant cereals;Internal standard;LC-MS/MS;Stable isotope dilution analysis
作者:Al-Taher, F;Cappozzo, J;Zweigenbaum, J;Lee, HJ;Jackson, L;Ryu, D
作者单位:IIT
期刊名称:FOOD CONTROL
期刊影响因子:3.388
出版年份:2017
出版刊次:2
  1. 编译服务:农产品质量安全
  2. 编译者:虞德容
  3. 编译时间:2017-05-22