分析测试学报2009，Vol.28Issue(7)：863-866,4.DOI:10.3969/j.issn.1004-4957.2009.07.023
环境水样中百菌清残留的单滴微萃取-反相液相色谱测定
Determination of Chlorothalonil Residue in Environmental Water Samples by Single Drop Microextraction-Reverse Phase Liquid Chromatography
摘要
Abstract
A detection method for determination of chlorothalonil residue in environmental water samples by single drop microextraction(SDME)-reverse phase liquid chromatography(RPLC) has been studied.The conditions of effect on SDME have been optimized,and the optimal conditions were as follows:6 μL cyclohexane for extraction solvent,2 μL single drop,350 r/min for stirring speed,40 min for extraction,35 ℃ and 0% of salinity for water solution.After extracted by SDME,the sample was separated and determined by RPLC with Hypersil C18 column and 100% of methanol as the mobile phase with the flow rate of 1.0 mL/min at 25 ℃.The detection wavelength was set at 224 nm.The linearity,detection limit,RSD and enrichment fold of the method were 1.0-50 μg/L,0.02 μg/L,6.1% and 427,respectively.The proposed method has been applied to determine chlorothalonil residue in environmental water samples,and the recoveries from spiked environmental water samples varied from 98% to 106%.关键词
单滴微萃取(SDME)/百菌清/反相液相色谱(RPLC)/环境水样Key words
single drop microextraction(SDME)/chlorothalonil/reverse phase liquid chromatography(RPLC)/environmental water sample分类
化学化工引用本文复制引用
孙福生,董杰..环境水样中百菌清残留的单滴微萃取-反相液相色谱测定[J].分析测试学报,2009,28(7):863-866,4.基金项目
江苏省环境科学与工程重点实验室资助项目(ZD071203) （ZD071203）
