液相色谱法测定水中痕量N,N-二甲基苯胺  

Determination of Trace of N,N-Dimethylaniline in Drinking Water by LC

作　　者：纪峰[1] 崔崇威[2] 李圭白[2] 姜旭[1] 罗文斌[1] 朱灵敏[1] 贾丽莉[1] 慕先锋[1] 

机构地区：[1]哈尔滨供排水集团水质中心,黑龙江哈尔滨150080 [2]哈尔滨工业大学市政环境工程学院,黑龙江哈尔滨150090

出　　处：《中国给水排水》2007年第12期76-79,共4页China Water & Wastewater

基　　金：松花江水污染应急科技专项(科技部;2005)

摘　　要：提出了N,N-二甲基苯胺(DMA)的液相色谱检测新方法,考察了流动相、DMA浓度等因素对分析方法的影响。结果表明,选择固定波长为254nm,在流动相乙腈∶水为85∶15(体积比)时,该方法的平均加标回收率为89.96%,检出限为0.98μg/L,测定结果不受DMA浓度及其他干扰物的影响,具有应用普遍性,可用于水源水和饮用水中DMA的检测。A new method for determining N, N-dimethylaniline （DMA） in drinking water by liquid chromatograph was put forward. The influences of mobile phase, DMA concentration and other factors on this analysis method were investigated. The results show that when the fixed wavelength is 254 nm, and the mobile phase is aeetonitrile and water with volumetric ratio of 85 ： 15, the average standard addition recovery of this method is 89.96%, and the lowest detective limit is 0.98 μg/L. The determination result is not influenced by DMA concentration and other interferents. The method is widely applicable and effective for determination of DMA in source water and drinking water.

关 键 词：饮用水 N N-二甲基苯胺 液相色谱法 痕量分析 

分 类 号：X832[环境科学与工程—环境工程]