中文摘要：为了提高椰子的产量、延长椰浆的保存期，在椰产品生产加工过程中会使用各种杀虫剂。因此，必须对含椰子成分的相关产品进行农药残留量检测。本文采用改进的QuEChERS和LC-MS/MS技术构建了一种可检测椰汁和椰浆中十种农药残留的方法。该方法具有良好的特异性、线性、基质效应、准确度和精密度，检测限为3μg/kg，定量限为10μg/kg，加标回收率在70%-120%。应用该方法对36个椰汁和椰浆样本进行分析，所有样本中多菌灵、克百威残留、环唑醇和苯四种农药的残留量均低于检测限。
外文摘要：The use of pesticides is directly linked to improvements in productivity and to the preservation of coconut palms. However pesticide analysis is necessary to determine whether pesticide residues in the food products containing coconut are within the maximum residue limits (MRLs), ensuring the quality of these products. This work aimed to develop a method for multiresidue determination of ten pesticides in coconut water and pulp using QuEChERS and LC-MS/MS. The method was effective in terms of selectivity, linearity, matrix effect, accuracy and precision, providing LOD of 3 mu g kg(-1), LOQ of 10 mu g kg(-1) and recoveries between 70 and 120% with RSD lower than 20%. The developed method was applied to 36 samples in which residues of carbendazim, carbofuran, cyproconazole and thiabendazole were found below the LOQ in coconut water and pulp. (C) 2016 Elsevier Ltd. All rights reserved.
外文关键词：Cocos nucifera Linn；Pesticides；Modified QuEChERS；Coconut water；Coconut pulp；LC-MS/MS
作者：Jordana Alves Ferreiraa；Joana Maria Santos Ferreirab；Viviane Talamini
作者单位：Instituto de Química, Universidade Estadual de Campinas, POB 6154, 13083-970 Campinas, SP, Brazil
期刊名称：Food Chemistry
期刊影响因子：4.052
出版年份：2016
出版刊次：6
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