分析化学2012，Vol.40Issue(8)：1257-1261,5.DOI:10.3724/SP.J.1096.2012.20081
中空纤维支载离子液体液液微萃取法检测环境水体中的三氯生
Hollow Fiber Supported Ionic Liquid Liquid-Liquid Micro-Extraction for Determination of Triclosan in Environmental Water Samples
摘要
Abstract
Triclosan (5-Chloro-2-(2,4-dichlorophenoxy) phenol, TCS) was one of emerging environmental contaminants, which could cause potential ecological risks and impacts on human health. In present study, a [C8MIM][PF6]) micro-extraction (HF-LPME) method based on a hollow fiber supported ionic liquid (IL, 1-Octy1-3-methylimidazolium hexafluorophosphate was developed for determination of TCS in water samples by coupling with high performance liquid chromatography (HPLC). Several parameters affecting the extraction enrichment factor, including extraction solvent, IL volume, sample pH, salinity and extraction time were investigated. Under the optimum conditions (donor phase volume: 50mL, pH: 2, salinity: 0. 2 mol/L NaCl, extraction time: 8 h, shaking speed; 200 r/min), the developed method offered high enrichment factor (907), low detection limit (0. 05 μg/L, RSD=7. 4% , n= 6) and good linear range (0. 1-100 μg/L). The proposed method was applied to determine TCS in a variety of environmental water, and satisfactory recoveries (94. 2% -108. 5%, RSD=5. 5% - 8%, n=6) were obtained, thus it was confirmed that the HF-LPME procedure could be widely used in determination of TCS at aquatic system.关键词
三氯生/离子液体/中空纤维支载液膜微萃取/高效液相色谱Key words
Triclosan/ Ionic liquid/ Hollow fiber supported liquid membrane micro-extraction/ High performance liquid chromatography引用本文复制引用
江静,邵晓玲,常真,吴向阳,张祯..中空纤维支载离子液体液液微萃取法检测环境水体中的三氯生[J].分析化学,2012,40(8):1257-1261,5.基金项目
本文系国家自然科学基金(Nos.21107036,21102053)、教育部高等学校博士点(No.20113227120005)、国家重点实验室开放基金(No.KF2010-22)和江苏大学高级人才启动项目(No.10JDG130)资助 （Nos.21107036,21102053）
