离子液体顶空微萃取-气相色谱法测定水中苯系物  

Determination of Benzene Homologues in Water by Ionic Liquid Headspace Microextraction-Gas Chromatography

作　　者：周建科[1] 宋歌[1] 于贝贝[1] 王孟歌[2] 

机构地区：[1]河北大学理化分析中心,河北保定071002 [2]保定学院化学系,河北保定071000

出　　处：《福建分析测试》2009年第1期12-15,共4页Fujian Analysis & Testing

摘　　要：采用1-丁基-3-甲基咪唑四氟硼酸盐离子液体([Bmim]BF4)作萃取剂,顶空液相微萃取法富集水中苯系物,气相色谱法测定。考察了不同萃取温度和时间、样品体积、单液滴体积和盐析效应对结果的影响。苯、甲苯、二甲苯检出限分别为0.030μg/L、0.147μg/L、0.180μg/L,结果表明所用离子液体可有效富集水中痕量苯系物。The Ionic liquid （1-butyl-3-methylimidazolium tetrafluoroborate, [Bmim]BF4） headspace liquid-phase microextraction was used to concentrate the benzene homologues in water and they were determined by gas chromatography. The effects of the analytical conditions such as the extraction time, extraction temperature, etc., were investigated. The detection limits for benzene, toluene and xylene were 0.030μ/g,0.147μg/L and 0. 180μg/L respectively. It showed that the ionic liquid [Bmim]BF4 could be used for concentrating the trace benzene homologues in water.

关 键 词：离子液体 苯系物 顶空微萃取 气相色谱法 

分 类 号：O657.71[理学—分析化学]