液相微萃取-气相色谱法测定水样中邻苯二甲酸酯  

Determination of Phthalate Esters in Water by Single-drop Microextraction Coupled with Gas Chromatography

作　　者：李敏霞[1] 吴京洪[1] 曾玮[1] 马志玲[1] 

机构地区：[1]中山大学化学与化学工程学院,广州510275

出　　处：《分析化学》2006年第8期1172-1174,共3页Chinese Journal of Analytical Chemistry

摘　　要：建立了水试样中5种痕量邻苯二甲酸酯的单液滴液相微萃取-气相色谱检测方法。确定了对单液滴液相微萃取（SDME）的最佳实验条件。DMP、DEP、DBP、DEHP和DOP的方法检出限分别为0．042、0．0037、0．0097、0．045和0．23μg／L。将该方法应用于某江水、湖水、自来水和饮用纯净水试样的检测，相对标准偏差（RSD）在1．4％-14．0％；回收率在90．8％～107．0％。本方法简单、快速并且成本低、可信度高。A novel method has been developed for the simultaneous determination of the five phthalate esters in water by single-drop microextraction （SDME） coupled with gas chromatography. The variable experimental conditions for the liquid phase microextraction process were optimized. The detection limits of dimethyl phthalate, diethyl phthalate, dibutyl phthalate, diethylhexyl phthalate and di-n-octyl phthalate were 0. 042, 0. 0037, 0. 0097, 0. 045 and 0.23 μg/L, respectively. The method was applied to the determination of the five phthalate esters in river, lake, tap and drinking water, and the relative standard deviations were from 1.4% to 14.0% , recoveries of five phthalate esters were 90.8% - 107.0% . The main advantages of the method are simple, fast, low cost and high reliable.

关 键 词：液相微萃取 邻苯二甲酸酯 水分析 气相色谱法 

分 类 号：X832[环境科学与工程—环境工程]