上海农业学报2018，Vol.34Issue(1)：101-105,5.DOI:10.15955/j.issn1000-3924.2018.01.19
分散固相萃取-气相色谱法测定土壤中的高效氯氰菊酯残留
Determination of β-cypermethrin in soil samples by gas chromatography with dispersive solid phase extraction
摘要
Abstract
A rapid and accurate method to determine β-cypermethrin residue in soil was established.Samples were extracted ultrasonically with acetonitrile,purified by dispersive solid phase extraction using PSA and C18 as adsorbents.The analyte was separated by a heated HP-5 capillary column,determined by GC/ECD and then quantified by matrix-matched external standard method.In the range of 0.02-1.0 mg/L,the peak area of β-cypermethrin was linearly related to its concentration,with correlation coefficient higher than 0.9930.The limit of detection and quantification for β-cypermethrin in soil was 0.003 mg/kg and 0.02 mg/kg,respectively.The mean recovery rate was 83.8％-100.6％ with relative standard deviations of 3.7％-9.8％.The method was simple,accurate,solvent saving,no special instrument required and easy to master.It was shown to be a suitable method for determination of β-cypermethrin residue in soil.关键词
土壤/高效氯氰菊酯/分散固相萃取/气相色谱Key words
Soil/β-cypermethrin/Dispersive solid phase extraction/Gas chromatography (GC)分类
农业科技引用本文复制引用
蔡晓钰,姜宇,蒋宝南,刘腾飞..分散固相萃取-气相色谱法测定土壤中的高效氯氰菊酯残留[J].上海农业学报,2018,34(1):101-105,5.基金项目
江苏省食品质量安全重点实验室一省部共建国家重点实验室培育基地开放课题(201603) （201603）
苏州市科技支撑项目(SNG201644) （SNG201644）
苏州市应用基础研究项目(SNG201622) （SNG201622）
