Behavior of field-applied triadimefon, malathion, dichlorvos, and their main metabolites during barley storage and beer processing
Behavior of field-applied triadimefon, malathion, dichlorvos, and their main metabolites during barley storage and beer processing
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DOI：
10.1016/j.foodchem.2016.05.058
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发表时间：
2016-11-15
期刊：
影响因子：
8.8
通讯作者：
Dai, Xiaofeng
中科院分区：
文献类型：
--
作者：
Kong, Zhiqiang;Li, Minmin;Dai, Xiaofeng
采用中试装置研究了三唑酮、马拉硫磷和敌敌畏3种农药及其主要代谢物三唑醇和马拉通在大麦贮藏和啤酒加工过程中的行为和归宿。采用液相色谱-串联质谱法测定所有产品的残留量。三唑酮和马拉硫磷在储存过程中的消散速率动力学的现场调查表明，当使用5倍的推荐剂量时，它们的半衰期是两倍。碾磨对去除敌敌畏和马拉硫磷残留物的影响不大，而当酒糟在糖化后过滤时，这些残留物基本上被去除。计算出的加工系数均为
The behavior and fate of 3 pesticides (triadimefon, malathion, and dichlorvos) and the main metabolites (triadimenol and malaoxon) during barley storage or beer processing were assessed using a pilot-plant equipment. The residues of all products were determined using liquid chromatography coupled with tandem mass spectrometry. Field investigation of the dissipation rate kinetics for triadimefon and malathion during storage indicated that their half-life was twice as high when 5 times the recommended dosage was used. Milling had little effect on the removal of dichlorvos and malathion residues, whereas these were substantially removed when the spent grains were filtered after mashing. The calculated processing factors were all