分析测试学报2017，Vol.36Issue(6)：783-787,5.DOI:10.3969/j.issn.1004-4957.2017.06.014
玉米粉中吡虫啉、三唑酮、乙草胺与异丙甲草胺的QuEChERS/高效液相色谱-串联质谱快速检测
Rapid Determination of Imidacloprid, Triadimefon, Acetochlor and Metolachlor in Corn Flour by QuEChERS/Ultra-performance Liquid Chromatography-Tandem Mass Spectrometry
摘要
Abstract
A QuEChERS/HPLC-MS/MS method was developed for the simultaneous determination of imidacloprid,triadimefon,acetochlor and metolachlor residue in corn flour.The residues were extracted from samples with acetonitrile and cleaned up by dispersive method using PSA and GCB,then detected by high liquid chromatography-mass spectrometry (HPLC-MS/MS) under multiple reaction monitoring mode,and quantified by the matrix-matched standard solution.The results showed the method had a good linearity(r2 ≥0.998) in the range of 0.005-1.000 mg/L.Average recoveries at three spiked levels of 0.05-1.00 mg/kg were in the range of 74.9％-98.4％ with relative standard deviations (n =5) of 1.6％-5.3％.The limits of detection(LOD) for 4 pesticides were in the range of 0.001-0.26 μg/kg,and limits of quantitation(LOQ) were in the range of 0.004-0.867 μg/kg.With the advantages of rapidness,simplicity,high sensitivity and good reproducibility,the method is suitable for the determination of target pesticides in corn flour.关键词
QuEChERS/吡虫啉/三唑酮/乙草胺/异丙甲草胺/高效液相色谱-串联质谱法Key words
QuEChERS/imidacloprid/triadimefon/acetochlor/metolachlor/HPLC-MS/MS分类
化学化工引用本文复制引用
李菊颖,郭欣妍,何健,吴文铸,孔德洋,单正军,陈全博..玉米粉中吡虫啉、三唑酮、乙草胺与异丙甲草胺的QuEChERS/高效液相色谱-串联质谱快速检测[J].分析测试学报,2017,36(6):783-787,5.基金项目
国家重点研发计划(2016YFD0200200,2016YFD0200201) （2016YFD0200200,2016YFD0200201）
