分析测试学报2025，Vol.44Issue(7)：1338-1345,8.DOI:10.12452/j.fxcsxb.241121550
改进的QuEChERS/液相色谱-质谱联用法测定椰汁饮料中90种农药及其代谢物残留量
Determination of 90 Pesticide and Their Metabolites Residues in Coconut Meat Juice by Modified QuEChERS/LC-MS/MS Method
摘要
Abstract
A method for the determination of 90 pesticides and their metabolites residues in coconut meat juice was established by liquid chromatography-tandem mass spectrometry(LC-MS/MS).The coconut meat juice samples were extracted with 1%formic acid acetonitrile,purified by dispersive solid phase extraction columns containing N-propylethylenediamine(PSA),lipid and protein adsor-bent(LPAS),Florisil and aminated-multi-walled carbon nanotubes(NH2-MWCNTs)purification materials,analyzed by multi-reaction monitoring(MRM)mode,and quantified by external standard method of matrix-matched standard curve.The results showed that the 90 pesticides and their metabo-lites showed good linearity in the range of 0.002-0.2 mg/L with the correlation coefficients(r2)more than 0.99,and the limit of quantification(LOQ)was 0.01 mg/kg.Average recoveries at three spiked levels were 60.6%-118%with relative standard deviations(RSDs)of 0.60%-12%(n=6).This method has good purification effect and simple operation.It is suitable for the determination of various pesticide residues in coconut meat juice.关键词
椰汁/农药残留/QuEChERS/液相色谱-质谱联用法Key words
coconut meat juice/pesticide residue/QuEChERS/LC-MS/MS分类
化学化工引用本文复制引用
潘永波,赵静,万娜,刘春华,李春丽..改进的QuEChERS/液相色谱-质谱联用法测定椰汁饮料中90种农药及其代谢物残留量[J].分析测试学报,2025,44(7):1338-1345,8.基金项目
国家市场监管重点实验室(热带果蔬质量与安全)自主研究课题项目(ZZ-2023024) （热带果蔬质量与安全）
海南省热带果蔬产品质量安全重点实验室开放课题项目(KFKT2023004) （KFKT2023004）
