QuEChERS预处理结合HPLC-MS/MS同时检测茶叶中7种农药残留  

Simultaneous determination of seven carbamates, neonicotinoids and diafenthiuron pesticide residues in tea by QuEChERS-HPLC-MS/MS

作　　者：陈磊[1,2,3] 上官良敏[4] 付凤富[2,3] 

机构地区：[1]上海市农业科学院农产品质量标准与检测技术研究所,上海201403 [2]福州大学食品安全分析与检测教育部重点实验室 [3]海西食品安全检测技术与产品协同创新中心,福州350108 [4]国家茶叶质量监督检验中心(福建),安溪362400

出　　处：《中国科学：化学》2016年第3期302-308,共7页SCIENTIA SINICA Chimica

基　　金：福建省自然科学基金项目资助(编号:2012J01035)

摘　　要：本文建立了同时分析检测茶叶中啶虫脒、吡虫啉、噻虫嗪、多菌灵、克百威、灭多威和丁醚脲7种农药残留的QuEChERS前处理结合高效液相色谱-质谱联用（QuEChERS-HPLC-MS/MS）技术.优化了QuEChERS前处理的各种条件和HPLC-MS/MS分离检测条件.所建立的方法简单、快速,可用于同时分析检测茶叶中上述7种农药残留,效果良好.7种农药的国际纯粹与应用化学联合会（IUPAC）定量限为0.26-1.3 ng/mL,回收率为86%-101%,能够满足国内外茶叶标准对其限量指标的检测要求.A novel method for the simultaneous determination of 7 carbamates, neonicotinoids and diafenthiuron pesticide residues（acetamiprid, imidacloprid, thiamethoxam, carbendazim, carbofuran, methomyl and diafenthiuron） in tea by QuEChERS pretreatment together with HPLC-MS/MS was described in this study. The optimum conditions of QuEChERS pretreatment and HPLC-MS/MS detection were investigated in detail in order to obtain the best performance of the method. The method reported in this study is simple and fast, it could be used to simultaneously determine above 7 pesticide residues in tea with an IUPAC LOQ of 0.26–1.3 ng/mL and a recovery of 86%–101%. The success of this study provided a rapid, simple and reliable method for simultaneously detecting above 7 pesticide residues in tea.

关 键 词：QUECHERS HPLC-MS 茶叶 氨基甲酸酯农药 新烟碱类农药 丁醚脲 

分 类 号：O657.63[理学—分析化学]