色谱2013，Vol.31Issue(2)：155-161,7.DOI:10.3724/SP.J.1123.2012.09003
超声辅助分散液液微萃取-高效液相色谱测定水样中的4种邻苯二甲酸酯类增塑剂
Simultaneous determination of four phthalate esters in water samples using ultrasound-assisted dispersive liquidliquid microextraction coupled with high performance liquid chromatography
摘要
Abstract
Ultrasound-assisted dispersive liquid-liquid microextraction coupled with high performance liquid chromatography (UA-DLLME-HPLC) was developed for the determination of four typical phthalate esters (PAEs). The analyzed PAEs included dimethyl phthalate(DMP), diethyl phthalate ( DEP), dibutyl phthalate ( DBP ) and di-n-octyl phthalate ( DnOP ). The UA-DLLME parameters such as types/volumes of extraction/dispersion solvents, ultrasonic time, ionic strength and extraction time, were investigated. Enrichment factor (EF) was employed to evaluate the extraction efficiency. The conditions were finally chosen; CC14(40 μL)/ acetonitrile (1.0 mL) as extraction/dispersion solvents; 30 g/L NaCl; ultrasound/centrifuga-tion of 5 min. Under the optimized extraction conditions, UA-DLLME exhibited strong enrichment ability for the four PAEs. The EFs for DMP, DEP, DBP and DnOP obtained were 71, 144, 169 and 159, respectively. The limits of detection were 3. 78, 1. 77, 3. 07 and 3. 30 μg/L for DMP, DEP, DBP and DnOP, respectively. The satisfactory recoveries for three water samples at three spiked levels ranged from 82. 99% - 114. 47%, with the relative standard deviations of 1. 93% -8. 31%. It is a convenient, speedy, environmentally benign method for the routine analysis of PAEs in water samples.关键词
分散液液微萃取/超声辅助/高效液相色谱/邻苯二甲酸酯/水样Key words
dispersive liquid-liquid microextraction ( DLLME) / ultrasound-assisted ( UA) / high performance liquid chromatography (HPLC) / phthalate esters (PAEs)/ water sample分类
化学化工引用本文复制引用
马燕玲,陈令新,丁养军,明永飞,李金花..超声辅助分散液液微萃取-高效液相色谱测定水样中的4种邻苯二甲酸酯类增塑剂[J].色谱,2013,31(2):155-161,7.基金项目
国家自然科学基金项目(21275158,21105117) （21275158,21105117）
山东省自然科学基金项目(ZR2010BQ027) （ZR2010BQ027）
山东省优秀中青年科学家奖励基金项目(BS2009CL055) （BS2009CL055）
烟台市科技发展项目(2010158). （2010158）
