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当前位置: 首页 > 文章 > 分散固相萃取结合HPLC法测定张杂谷中新烟碱类杀虫剂的残留 农药 2018 (7) 511-515
Position: Home > Articles > Determination of Neonicotinoid Insecticides in Hybrid Millet Using Dispersive Solid-phase Extraction and HPLC Agrochemicals 2018 (7) 511-515

分散固相萃取结合HPLC法测定张杂谷中新烟碱类杀虫剂的残留

作  者：
卢海博;魏东;王素利;黄智鸿;高宝嘉
关键词：
新烟碱类杀虫剂;多残留分析;张杂谷;高效液相色谱
摘  要：
[目的]研究适合谷子中8种新烟碱类杀虫剂的多残留快速检测方法。[方法]试验以乙腈为提取溶剂,PSA、GCB和C18吸附剂净化,0.3%甲酸水-乙腈梯度洗脱,基质匹配标准曲线外标法定量。[结果]在0.01~2.4 mg/L水平范围内,不同基质中的新烟碱类药剂线性相关系数均大于0.991,在0.05、0.20、0.8 mg/kg添加水平下,谷米、谷糠中新烟碱类杀虫剂的平均回收率为75%~105%,RSD为1.9%~14.4%。[结论]分散固相萃取-高效液相检测方法简便、快速、准确、灵敏、节省样品和有机溶剂,可满足谷米和谷糠中8种新烟碱类杀虫剂残留检测的需要。
译  名：
Determination of Neonicotinoid Insecticides in Hybrid Millet Using Dispersive Solid-phase Extraction and HPLC
作  者：
LU Hai-bo;WEI Dong;WANG Su-li;HUANG Zhi-hong;GAO Bao-jia;Forestry College,Hebei Agriculture University;Hebei North University,Hebei Key Laboratory of Quality & Safety Analysis-Testing for Agro-Products and Food;
单  位：
LU Hai-bo%WEI Dong%WANG Su-li%HUANG Zhi-hong%GAO Bao-jia%Forestry College,Hebei Agriculture University%Hebei North University,Hebei Key Laboratory of Quality & Safety Analysis-Testing for Agro-Products and Food
关键词：
neonicotinoid insecticides;;multi-residue analysis;;hybrid millet;;HPLC
摘  要：
[Aims] In order to research the method for rapid determination of eight neonicotinoid insecticides in hybrid millet using dispersive solid-phase extraction and high performance liquid chromatography.[Methods] The sample was extracted with acetonitrile and cleaned up with PSA,GCB and C18,and then separated using an gradient elution program of 0.3% aqueous formic acid and acetonitrile.Matrix-matched calibrations were used to quantify the residue concentrations.[Results] In the concentration range of 0.01-2.4 mg/L,the matrix-matched calibration curves showed good linearity with correlation coefficients of ≥0.991.At the addition levels of 0.05,0.20 and 0.8 mg/kg,mean recoveries of neonicotinoid insecticides in different matrices were 75-105% with relative standard deviations(RSD) of1.9-14.4%.[Conclusions] The method is simple,rapid,sensitive and accurate,which can meet the detection requirements of neonicotinoid insecticides in grain and bran of hybrid millet.

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