岩矿测试Issue(3)：353-358,6.DOI:10.15898/j.cnki.11-2131/td.2015.03.016
原位生成离子液体分散液液萃取－高效液相色谱法测定水样中的莠去津
HPLC Determination of Atrazine in Water Using Dispersive Liquid-Liquid Microextraction in situ Ionic Liquid Formation
摘要
Abstract
A kind of green solvent,ionic liquid,was introduced as an extracting agent,and a new method of dispersive liquid-liquid microextraction based on ultrasonic-assisted in situ ionic liquid formation (DLLM-UAISLF) was established for the High Performance Liquid Chromatography (HPLC)determination of atrazine in water.Five mL of water was treated using 80 μL of [HMim]Cl as the extracting agent,400 μL of LiNTf2 as the ion-exchange material,ultrasound time of 10 minutes and centrifuge time of 8 minutes at 4000 r/min.During this process,the droplets of ionic liquid [HMim ]NTf2 were formed in water and the precipitates were then separated for determination of atrazine by HPLC.The detection limit of atrazine is 0.01 mg/L and the detection values range from 0.01 to 0.5 mg/L.The proposed method yielded recoveries of 100.4% -106.7%,which are obviously better than those (<67%)of direct liquid-liquid microextraction.This method has potential in the determination of organic pollutants.关键词
水样/莠去津/原位生成离子液体/分散液液微萃取/高效液相色谱法Key words
water sample/atrazine/in situ ionic liquid formation/dispersive liquid-liquid microextraction/High Performance Liquid Chromatography分类
农业科技引用本文复制引用
潘闽君,曹茜,景明,李晋阳,陈家玮..原位生成离子液体分散液液萃取－高效液相色谱法测定水样中的莠去津[J].岩矿测试,2015,(3):353-358,6.基金项目
国家自然科学基金面上项目（41272061，41472232）；生物地质与环境地质国家重点实验室开放基金（GBL21404）；中央高校基本科研业务费优秀教师项目；国家大学生创新实验计划项目 （）
