高等学校化学学报2011，Vol.32Issue(7)：1488-1491,4.
氯乙酸甲酯为萃取剂的液-液半微萃取与胶束电动色谱耦联富集分离中性化合物
Methyl Chloroacetate as Extraction Solvent for Coupling Liquid-liquid Semimicroextraction with Micellar Electrokinetic Chromatography for the Separation of Neutral Compounds with Concentration Enhancement
摘要
Abstract
This paper reports the use of methyl chloroacetate ( MCA) as an extraction solvent for coupling liquid-liquid semimicroextraction( LLsME ) with micellar electrokinetic chromatography ( MEKC) through on-capillary decomposition for the separation of neutral compounds with concentration enhancement. Alkylphenones butyrophenone, valerophenone and acetophenone were chosen as modeling compounds. Aqueous samples of the alkylphenones were extracted by LLsME into MCA. The organic phase was directly subjected to separate by MEKC. The detection limits(S/N≥3) were 50, 50 and 100 |xg/L for butyrophenone, valerophenone and acetophenone in water, respectively, and the concentration factors of the extraction were in a range of 63 to 151-fold in terms of peak area. The method developed has no requirement for any special experimental apparatus other than a basic CE setup and is time-saving and easy-ope-rated. Recoveries of 4-t-BP and BPA in drink water were examined. The recoveries were obtained as 99.87% and 102.8%, respectively. Therefore, it would be readily acceptable for routine analysis, especially for environmental samples.关键词
液-液半微萃取/胶束电动色谱/氯乙酸甲酯/苯酮/富集Key words
Liquid-liquid semimicroextraction/Micellar electrokinetic chromatography/Methyl chloroacetate/Alkylphenones/Concentration分类
化学化工引用本文复制引用
唐婧,郑胜彪,朱金坤,王田霖..氯乙酸甲酯为萃取剂的液-液半微萃取与胶束电动色谱耦联富集分离中性化合物[J].高等学校化学学报,2011,32(7):1488-1491,4.基金项目
安徽科技学院引进人才基金项目(批准号:ZRC2009239)资助. （批准号:ZRC2009239）
