摘要
报道了 Trap I(VOCARB40 0 0 )柱捕集水中挥发性有机污染物的性能和条件 ,建立了吹扫捕集和气相色谱 -质谱联用测定饮用水和地表水样中 2 5种挥发性有机污染物的分析方法。水样的加标回收率在 90 %～ 1 1 0 %之间 ,最低检测限在 0 .0 4～ 0 .85 μg/ L 之间 ,2 0 μg/ L 的挥发性有机物标准溶液经重复 6次测定 ,其相对标准偏差基本小于 5 .0 %。该方法已成功地运用于饮用水和地表水中挥发性有机污染物的测定 ,结果令人满意。
A purge and trap method with Trap I (VOCARB 4000) column being used as a trap carrier combined with gas chromatography and mass spectrometry (GC/MS) was evaluated for the determination of 25 kinds of trace volatile organic compounds (VOCs) in drinking water and environmental water Using the purge and trap concentration method, the range of the lowest detection limits for 25 kinds of VOCs was 0 04～0 85μg/L, the recovery ratios of the method were 90%～110%, and relative standard deviations (n=6) were generally lower than 5 0% for 20μg/L standard VOCs The application of the method to the determination of VOCs in real samples was tested by analyzing the drinking water and environmental water samples Satisfactory results were obtained
出处
《中国环境监测》
CAS
CSCD
北大核心
2000年第4期18-22,共5页
Environmental Monitoring in China
基金
浙江省分析测试基金! (990 36 )
