SPE-GC-ECD法测定水体中五种硝基苯类化合物  

Determination of Five Nitrobenzene Compounds in Water Using Solid Phase Extraction and Gas Chromatography-Electron Capture Detector

作　　者：张蓓蓓[1] 章勇[1] 赵永刚[1] 

机构地区：[1]江苏省环境监测中心,江苏南京210036

出　　处：《环境监控与预警》2010年第2期18-20,共3页Environmental Monitoring and Forewarning

基　　金：国家高科技研究发展计划(863计划)重点项目(2007AA61602)

摘　　要：建立了固相萃取(SPE)-气相色谱-电子捕获检测器(GC-ECD)检测水中硝基苯类的方法。5种硝基苯类化合物的测定在一定浓度范围内线性关系良好,在高、中、低3种浓度水平下,被测物的回收率在71.6%～87.8%之间,测定结果的相对标准偏差在1.6%～9.3%之间。5种硝基苯类的方法检出限分别为0.15μg/L和0.015μg/L。结果表明,该方法适用于实际水样中硝基苯类的测定。Presents a method for analysis of five nitrobenzene compounds in water using solid phase extraction and gas chroma- tography - electron capture detector. It was found that good linear relationship between peak areas and concentrations of five nitro- benzene compounds holds in certain range. The average recoveries in samples were between 71.6% - 87.8% with the relative standard deviations of 1.6% - 9.3%. Detection limits of five nitrobenzene compounds were found to be 0.15 μg/L and 0. 015 μg/ L. The optimized method has been successfully applied to the analysis of surface water.

关 键 词：硝基苯类 水体 固相萃取 气相色谱-电子捕获检测器 

分 类 号：O656.22[理学—分析化学]