分析化学2011，Vol.39Issue(5)：709-712,4.DOI:10.3724/SP.J.1096.2011.00709
[Bmim]BF4-NaH2PO4双水相萃取-高效液相色谱法测定水中痕量氯酚类内分泌干扰物
Determination of Trace Chlorophenols Endocrine Disrupting Chemicals in Water Sample Using [Bmim]BF4-NaH2PO4 Aqueous Two-Phase Extraction System Coupled with High Performance Liquid Chromatography
摘要
Abstract
Determination of trace chlorophenols endocrine disrupting chemicals in water sample was carried out by utilizing ionic liquid aqueous two-phase extraction systems coupled with high-perfor-mance liquid chromatography (HPLC). The effects of salt concentration, pH value of aqueous phase, extraction time and the amount of ionic liquid on extraction efficiency were investigated. The highest extraction efficiency for these three target analytes were obtained when concentration of NaH2PO4 aqueous, pH value, extraction time and the amount of ionic liquid were 0.5 g/mL, 4.0, 4 min and 2 mL, respectively. Ionic liquid phase was directly analyzed by HPIC with the detection limits of 2, 11 and 5 μg/L (S/N = 3) for 2,4-dichlorophenol, 2,6-dichlorophenol and 4-chlorophenol, respectively. Good recovery results (90.2 ％- 107.0 ％ ) with relative standard deviation ranging from 1.2 ％ to 5.2％ (n=5) were obtained when this method was applied to determine these three chlorophenols in tap water, lake water, waste water of chemical industry.关键词
离子液体双水相萃取/高效液相色谱/氯酚Key words
Ionic liquids aqueous two-phase extraction/ High performance liquid chromatography/ Chlorophenol引用本文复制引用
王良,朱红,孙艳涛,徐英杰,王庆伟,闫永胜..[Bmim]BF4-NaH2PO4双水相萃取-高效液相色谱法测定水中痕量氯酚类内分泌干扰物[J].分析化学,2011,39(5):709-712,4.基金项目
本文系国家自然科学基金(No.20777029)资助项目 （No.20777029）
