Multifamily determination of pesticide residues in soya-based nutraceutical products by GC/MS-MS
Multifamily determination of pesticide residues in soya-based nutraceutical products by GC/MS-MS
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DOI：
10.1016/j.foodchem.2014.10.100
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发表时间：
2015-04-15
期刊：
影响因子：
8.8
通讯作者：
Frenich, Antonia Garrido
中科院分区：
文献类型：
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作者：
Palenikova, Agnesa;Martinez-Dominguez, Gerardo;Frenich, Antonia Garrido
采用改良QuEChERS萃取-气相色谱-串联质谱法（GC-MS/MS）对大豆保健品中177种农药残留进行了测定。QuEChERS方法进行了优化，并测试了不同的提取溶剂和清洁方法，获得了最有效的条件与吸附剂的混合物（PSA，C18，GBC和Zr-Sep（+））。回收率在10、50和100 μ g/kg下进行了评价，范围在70%至120%之间。精密度表示为相对标准偏差（RSD），它被评估为超过160种农药的日内和日间精密度，值始终低于20%和25%，分别。检测限（LOD）范围为0.1至10微克/公斤，而定量限（LOQ）为0.5至20微克/公斤。通过对大豆营养品的分析，证明了该方法的适用性。在这些样本中发现两种农药，马拉硫磷和吡丙醚，分别为每公斤11.1和1.5微克。(C)2014爱思唯尔有限公司版权所有。
An analytical method based on a modified QuEChERS extraction coupled with gas chromatography tandem mass spectrometry (GC-MS/MS) was evaluated for the determination of 177 pesticides in soya-based nutraceutical products. The QuEChERS method was optimised and different extraction solvents and clean-up approaches were tested, obtaining the most efficient conditions with a mixture of sorbents (PSA, C18, GBC and Zr-Sep(+)). Recoveries were evaluated at 10, 50 and 100 mu g/kg and ranged between 70% and 120%. Precision was expressed as relative standard deviation (RSD), and it was evaluated for more than 160 pesticides as intra and inter-day precision, with values always below 20% and 25%, respectively. Limits of detection (LODs) ranged from 0.1 to 10 mu g/kg, whereas limits of quantification (LOQs) from 0.5 to 20 mu g/kg. The applicability of the method was proved by analysing soya-based nutraceuticals. Two pesticides were found in these samples, malathion and pyriproxyfen, at 11.1 and 1.5 mu g/kg respectively. (C) 2014 Elsevier Ltd. All rights reserved.