农药学学报2023，Vol.25Issue(6)：1340-1348,9.DOI:10.16801/j.issn.1008-7303.2023.0096
抽拔辅助分散固相微萃取技术用于饮料中5种杀菌剂残留检测研究
Employing syringe-assisted dispersive solid phase microextraction for precision detection of five fungicide residues in beverages
摘要
Abstract
In this study,a green,economical and easy-to-use syringe-assisted dispersive solid phase microextraction method was developed for the rapid detection of the residues of 5 fungicides(azoxystrobin,triadimefon,chlorothalonil,cyprodinil,trifloxystrobin)in two fruit juices(grape juice and apple juice)as well as two tea drink samples(green tea and black tea).A novel extraction material was prepared by coating ionic liquids on β-cyclodextrin/attapulgite,and a series of test experiments for the condition optimization of the method were conducted using liquid chromatography for detection.Results revealed that the optimal condition of the method used 40 mg of extraction material and 600 μL of acetone for elution,and 6 dispersion cycles and 7 elution cycles were performed.The detection limits(LOD)for the 5 compounds were 0.03-0.38 μg/L,and the limits of quantification(LOQ)were 0.09-1.15μg/L,with the enrichment factors ranged from 121 to 201.The linear detection range of the five fungicides was 5 to 500 μg/L,with the coefficient of determination(R2)ranging from 0.9982 to 0.9999.The fortified recoveries were 91%-102%.It showed that the method had good precision and accuracy.The testing results for real samples indicated that the syringe-assisted dispersive solid phase microextraction technology can be used for the extraction of residual fungicides in beverages.关键词
抽拔辅助分散固相微萃取/饮料/杀菌剂/残留/离子液体/坡缕石/β-环糊精Key words
syringe-assisted dispersive solid phase microextraction/beverage/fungicides/residue/ionic liquid/attapulgite/β-cyclodextrin分类
轻工纺织引用本文复制引用
康琬琳,张艳超,宋惜木,席雪霏,高海翔,周文峰..抽拔辅助分散固相微萃取技术用于饮料中5种杀菌剂残留检测研究[J].农药学学报,2023,25(6):1340-1348,9.基金项目
国家自然科学基金(21677174,21277172). Supported by National Natural Science Foundation of China(No.21677174,21277172). （21677174,21277172）
