GC-ECD测定水中10种痕量硝基苯类化合物  

Determination of ten kinds of trace nitrobenzene compounds in water samples by GC-ECD

作　　者：向彩红 董玉莲 黄天笑 

机构地区：[1]国家城市供水水质监测网广州监测站 [2]广州市自来水公司水质部,广州510160

出　　处：《分析仪器》2014年第2期38-42,共5页Analytical Instrumentation

摘　　要：建立了GC-ECD法测定水源水、饮用水中硝基苯、硝基氯苯（邻硝基氯苯、间硝基氯苯、对硝基氯苯）、二硝基苯（邻二硝基苯、间二硝基苯、对二硝基苯）、2，4-二硝基甲苯、2，4-二硝基氯苯、2，4，6-三硝基甲苯的分析方法。方法检出限为0.006μg ·L -1～0.05μg ·L -1，平均回收率为83.1％～113.9％，相对标准偏差小于10％。应用该方法对南方地区某河流中的硝基苯类化合物含量进行调查，仅间硝基氯苯、对硝基氯苯、邻二硝基苯、2，4-二硝基氯苯检出，且浓度为ng＆#183;L -1，表明该河流水质未受到硝基苯类化合物的污染。The detection limits of ten nitrobenzene compounds are between 0 .006μg ＆· L -1 and 0 .05μg · L -1 .The average recovery rate is from 83 .1 % to 113 .9% .The RSD is less than 10% .The method was used to determine the nitrobenzene compounds in water samples from some river of south of China , only 3-nitrochlorobenzene ,4-nitrochlorobenzene ,1 ,2-dinitribenzene and 2 ,4-dinitrochlorobenzene were detected ,the concentrations was ng · L -1 ,respectively .The results showed that the pollution state of ni-trobenzene compounds in the area was not serious .

关 键 词：固相萃取 气相色谱法 水 硝基苯类化合物 

分 类 号：X832[环境科学与工程—环境工程]