中文摘要：

基于中空纤维液相微萃取技术,建立了污水中两种痕量芳香胺类物质（邻甲苯胺和对氯苯胺）的离子色谱分析方法。对中空纤维液相微萃取条件进行了优化,得到的优化条件为：以正辛醇为萃取溶剂,供体相中NaOH的浓度为0.01 mol/L,NaCl的质量浓度为500 g/L,接收相中HCl的浓度为0.1 mol/L,搅拌速度为430 r/min,萃取时间为30 min。在优化条件下,邻甲苯胺的富集倍数为88倍,对氯苯胺的富集倍数为124倍。供体相中邻甲苯胺和对氯苯胺的质量浓度在0.005～0.1 mg/L范围内呈良好的线性,相关系数为0.999 8～0.999 9,检出限（以3倍信噪比计）分别为0.2和0.5μg/L,5次测定0.01 mg/L的混合标准溶液的相对标准偏差分别为0.85%和3.38%。该方法操作简单,环境友好,提高了离子色谱检测芳香胺类物质的灵敏度。

英文摘要：

The aim of this work is to develop a simple,selective,sensitive and inexpensive analytical method for the simultaneous determination of several aromatic amines.In this work,a new method for the determination of trace aromatic amines,including o-toluidine and 4-chloroaniline in waste water was developed by hollow fiber membrane extraction with ion chromatography.The optimal extraction conditions were as follows： by using 1-octanol as the organic phase with 500 g/L NaCl and 0.01 mol/L NaOH as the donor phase,and 0.1 mol/L HCl as the acceptor phase,the extraction was performed at a stirring rate of 430 r/min for 30 min.The linear range of both of o-toluidine and 4-chloroaniline was 0.005–0.1 mg/L,with correlation coefficients larger than 0.999.The detection limits of o-toluidine and 4-chloroaniline were 0.2 μg/L and 0.5 μg/L with the relative standard deviations（RSDs） of 0.85% and 3.38%,respectively.The method has been applied to the simultaneous determination of trace aromatic amines including o-toluidine and 4-chloroaniline in the waste water.