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Simultaneous determination of carbamate insecticides and mycotoxins in cereals by reversed phase liquid chromatography tandem mass spectrometry using a quick, easy, cheap, effective, rugged and safe extraction procedure

文献类型： 外文期刊

作者： Zhang, Jin-Ming 1 ; Wu, Yin-Liang 2 ; Lu, Yao-Bin 1 ;

作者机构： 1.Zhejiang Acad Agr Sci, Inst Plant Protect & Microbiol, State Key Lab Breeding Base Zhejiang Sustainable, Hangzhou 310021, Zhejiang, Peoples R China

2.Ningbo Acad Agr Sci, Ningbo 315040, Zhejiang, Peoples R China

关键词： Carbamate insecticides;Cereal;LC-MS/MS;Mycotoxins;QuEChERS

期刊名称：JOURNAL OF CHROMATOGRAPHY B-ANALYTICAL TECHNOLOGIES IN THE BIOMEDICAL AND LIFE SCIENCES （ 影响因子：3.205； 五年影响因子：3.068 ）

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收录情况： SCI

摘要： A simple, sensitive and reliable analytical method was developed for the simultaneous determination of 22 carbamate insecticides and 17 mycotoxins in cereals by ultra high performance liquid chromatography electrospray ionization tandem mass spectrometry (UHPLC-ESI-MS/MS). Carbamates and mycotoxins were extracted from cereal samples using a QuEChERS (Quick, Easy, Cheap, Effective, Rugged and Safe) procedure without any further clean-up step. The extract was diluted with water containing 0.1% formic acid and 5.0mM ammonium acetate, and analyzed by LC-MS/MS on a Waters Acquity BEH C18 column with water (0.1% formic acid, 0.50mM ammonium acetate)/methanol as mobile phase with gradient elution. Matrix-matched calibration was used for quantification. Blank samples (rice, wheat and corn) were fortified at 5, 10 and 50μg/kg except for five zearalenonic compounds at 25, 50 and 250μg/kg, and recoveries were in the range of 70-120%. Relative standard deviations were lower than 20% in all cases. The LOQ values were in the range of 0.20-29.7μg/kg. The method is suitable for the simultaneous determination of carbamate insecticides and mycotoxins in cereals. The total time required for the analysis of one sample, including sample preparation, was about 35min.

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