HSGC法测定水中微量的氯仿和四氯化碳  

DETERMINATION OF TRACE CHLOROFORM AND CARBON TETRACHLORIDE IN WATER BY HEAD SPACE GAS CHROMATOGROPHY WITH ELECTRON CAPTURE DETECTION

作　　者：姜庆利[1] 谭砂砾[1] 

机构地区：[1]山东工业大学环境与化学工程学院,济南250061

出　　处：《山东工业大学学报》2000年第4期341-345,352,共6页

摘　　要：对顶空气相色谱法 (HSGC)测定水中微量的氯仿和四氯化碳的实验条件进行了探讨 ,找出了减少试剂空白的简易方法 .所设计的分析方法具有步骤简单、分析时间短、取样体积少、易于排除干扰等优点 .与有机溶剂萃取气相色谱法相比 ,方法的灵敏度大约可提高 1 0 0 0倍 .对 CCl4 的检出限低于 0 .1 μg/L,准确性也比较好 。Trace chloroform and carbon tetrachloride from aqueous solutions are analysed by headspace gas chromatography with filled glass column and electron capture detector.Calibration by external standard techniques is discussed. The sensitivity of HSGC is about 1000 times higher than that of extraction method. The analysis results of carbon tetrachloride showed detection limit of 0.1 μg/L, relative standard deviation (RSD) of 5% and recoveries of>80%, which is considered satisfactory for drinking water monitoring.

关 键 词：水质监测 氯仿 四氯化碳 HSGC法 

分 类 号：X832[环境科学与工程—环境工程]