Determination of Coumoxystrobin Residue in Vegetables by QeEChERS-UPLC-MS/MS  

作　　者：Zheng LIU Shengjiang LIU Yaling LIU Qing LI Jun LIANG Xuexue ZHENG 

机构地区：[1]Anhua Administration for Market Supervision,Yiyang 413500,China [2]GRG Metrology&Test(Hunan)Co.,Ltd.,Changsha 410013,China [3]Hefei Measurement and Testing Center,Hefei 230088,China

出　　处：《Agricultural Biotechnology》2024年第4期38-39,45,共3页农业生物技术（英文版）

基　　金：Supported by Natural Science Foundation of Hunan Province(2024JJ8259).

摘　　要：[Objectives]This study was conducted to establish a method for determining residual coumoxystrobin in vegetables using QeEChERS-liquid chromatography-tandem mass spectrometry(QeEChERS-LC-MS/MS).[Methods]The sample was extracted by acetonitrile,and the extract was purified by QeEChERS,concentrated by nitrogen blowing,and then detected.[Results]Coumoxystrobin had a good linear relation in the range of 0.01-10.0 mg/kg,and the linear equation was y=4686.92×x+5683.28,R^(2)=0.999.The limit of detection was 0.001 mg/kg,and the limit of quantitation was 0.003 mg/kg.[Conclusions]The method has the advantages of convenient and fast operation and stable detection process,and can provide technical support for the supervision and monitoring of coumoxystrobin.

关 键 词：VEGETABLE UPLC-MS/MS Coumoxystrobin Residual amount 

分 类 号：O657.63[理学—分析化学] TS252.7[理学—化学]