中国食品添加剂2024，Vol.35Issue(8)：34-43,10.DOI:10.19804/j.issn1006-2513.2024.8.005
MWCNTs改进QuEChERS结合HPLC-MS/MS检测柑橘类水果中16种农药残留
MWCNTs improved QuEChERS combined with HPLC-MS/MS for the determination of 16 pesticide residues in citrus fruits
摘要
Abstract
A multiwalled carbon nanotube(MWCNTs)improved QuEChERS(quick,easy,cheap,effective,rugged,safe)method combined with high-performance liquid chromatography triple quadrupole tandem mass spectrometry(HPLC-MS/MS)technology was established to detect 16 pesticides residues in citrus fruits.The QuEChERS method was employed for sample preparation,the citrus fruits samples were extracted with acetonitrile followed by dispersive solid-phase cleanup using a mixed purification agent(100 mg PSA+10 mg MWCNTs).After membrane filtration,all the pesticides in citrus fruits samples were detected by HPLC-MS/MS and quantified by external standard method.16 pesticides showed good linear relationship within the concentration range of 2.5～250 μg/L,with a correlation coefficient of 0.9962～0.9999.The recoveries of 16 pesticides were 70.00%～111.55%,RSDs were 1.26%～14.58%,and the quantification limits were 0.023～5.365 μg/kg.This method was applied to detect 75 whole citrus fruit samples,and the detection rate of multiple pesticide residues was 61.3%.A maximum of 8 pesticides were detected in a single sample.The detection rate of difenoconazole was the highest(42.7%),and profenofos had the highest maximum residue concentration(95.31 μg/kg).None of the pesticide residues detected in the 75 whole citrus fruit samples exceeded their maximum residue limits.关键词
QuEChERS/MWCNTs/HPLC-MS/MS/柑橘类水果/农药残留Key words
QuEChERS/MWCNTs/HPLC-MS/MS/citrus fruits/pesticide residue分类
轻工纺织引用本文复制引用
关文碧,张添浩,叶芷晴..MWCNTs改进QuEChERS结合HPLC-MS/MS检测柑橘类水果中16种农药残留[J].中国食品添加剂,2024,35(8):34-43,10.基金项目
广东省普通高校青年创新人才项目(2021KQNCX104) （2021KQNCX104）
大学生创新创业训练计划项目(X202310580153) （X202310580153）
