中文摘要：本文建立了一种枸杞中八种农药（三唑酮、砜虫啶、氟硅唑、戊唑醇、苯醚甲环唑、双甲脒、嘧菌酯、甲基托布津）残留的LC-MS/MS检测方法。检测结果显示，在0.01-10 mg/kg的加标水平下，所有农药残留的回收率均在82.1% -96.2%范围内，相对标准差低于7%，枸杞中八种农药的半衰期为1.3-5天。本文还对上述八种农药的安全间隔期进行了调查研究，戊唑醇、砜虫啶和氟硅唑的安全间隔期较长，分别为14天、14天和28天，其余五种农药均为7天。根据评估危害系数，所有农药残留的膳食危险远低于100%，说明对枸杞施用这八种农药是安全的。
外文摘要：A LC-MS/MS method for determination of eight pesticides (triadimefon, sulfoxaflor, flusilazole, tebuconazole, difenoconazole, amitraz, azoxystrobin, and thiophanate-methyl) in Lycium barbarum was established. The samples were extracted with acetonitrile, and then cleaned up by primary secondary amine. The extracts were diluted with 0.1% formic acid in water. The results showed that at the fortified levels of 0.01-10 mg/kg, the average recoveries of these pesticides ranged from 82.1% to 96.2% with the relative standard deviations lower than 7%. The half-lives of eight pesticides were 1.3-5.0 days in Lycium barbarum fruits. The pre-harvest interval of all pesticides mentioned above were investigated. Tebuconazole (14 days), sulfoxaflor (14 days) and fiusilazole (28 days) have longer pre-harvest interval than the others which have 7 days. The dietary risks, assessed as hazard quotients, were far below 100%. The results showed that the eight pesticides applied to Lycium barbarum were comparably safe for the consumer. (C) 2016 Elsevier Ltd. All rights reserved.
外文关键词：Pesticides, Dissipation, Lycium barbarum, Dietary risk assessment
作者：Fu, Yan; Yang, Ting; Zhao, Jian; Zhang, Liang; Chen, Ruoxia; Wu, Yinliang
作者单位：Ningbo Acad Agr Sci, Ningbo 315040, Zhejiang, Peoples R China
期刊名称：FOOD CHEMISTRY
期刊影响因子：4.052
出版年份：2017
出版刊次：3
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