水中57种VOCs的快速GCMS分析  

Rapid Determination of 57 Volatile Organic Compounds in Drinking Water by GC/MS with Purge and Trap Sampling

作　　者：姚祺 沈培明 

机构地区：[1]上海市城市排水监测站,上海200062

出　　处：《净水技术》2016年第A01期83-88,112,共7页Water Purification Technology

摘　　要：该文通过使用专用色谱柱建立了吹脱捕集—气相色谱—质谱联用、内标法定量，测定生活饮用水中氯乙烯、环氧氯丙烷、六氯丁二烯等57种挥发性有机物的快速分析方法。方法检出限为0.01-0.19 μg/L，样品加标回收率为91.5%-107%，精密度（RSD,n=6）为1.2%-13.5%。对实际水样测定表明，该方法准确、快速、可靠，可以满足生活饮用水中挥发性有机物分析要求。A GC/MS analysis method was developed for simultaneous determination of 57 volatile organic compounds （VOCs） such as vinyl chloride, epichlorohydrin, hexachlorobutadiene in drinking water with purge and trap sampling by using an appropriative chromatographic column. Fluorobenzene, isotope-labeled chlorobenzene-d5 and 1,2-dichlorobenzene-d4 were used as the internal standard for the quantitation. The detection limitation of the target compounds was 0.01-0.19 p.g/L. The recovery range was 91.5%- 107% and the precision （RSD, n=6） was 1.2% -13.5%. The determination of the tap water samples showed that the method was accu- rate, rapid and reliable, and which was conform to the reauirements of the VOCs analvsis for drinking water.

关 键 词：挥发性有机物(VOCs) 吹脱捕集 气相色谱—质谱(GC/MS) 快速分析 

分 类 号：X832[环境科学与工程—环境工程]