用吹脱捕集/气相色谱-质谱法测定饮用水中23种挥发性有机物  

Determination of 23 Kinds of VOC(Volatile Organic Compounds)in Water by Using P&T-GC/MS(Purge and Trap-Gas Chromatography-Mass Spectrometry)

作　　者：李芳[1] 温雅娟[1] 

机构地区：[1]太原市环境监测中心站,山西太原030002

出　　处：《山西科技》2014年第2期121-123,共3页Shanxi Science and Technology

摘　　要：运用吹脱捕集/气相色谱-质谱法对23种挥发性有机物(VOC)进行了测定。结果表明:该方法能较好地分离23种VOC,低、中、高浓度的加标回收率分别为85.3%~114%、85.6%~93.2%、80.4%~105%,相对标准偏差分别为2.9%~8.5%、1.3%~7.3%、0.3%~6.1%,准确度和精密度均符合有关要求;方法检出限为0.11μg/L^1.15μg/L,远低于《地表水环境质量标准》(GB 3838—2002)、《生活饮用水卫生标准》(GB 5749—2006)标准的限值。This paper determines 23 kinds of VOC in water by Using P＆T-GC/MS method, the results show that this method can be used to separate 23 kinds of VOC, the standard recovery rates under low, median and high are ranged in 85.3%-114%, 85.6% - 93.2% and 80.4%-105% respectively, and the precision and accuracy conform to the relevant requirements, and the detection limits are in the range of 0.11μg/L-1. 15 μg/L,which are much lower than the limit values of China＇ s 〈Surface-water Environmental Quality Standard〉 （GB 3838-2002）s and 〈 Drinking Water Sanitary Standard〉 （GB 5749-2006）.

关 键 词：生活饮用水 挥发性有机物 吹脱捕集 气相色谱-质谱法 检出限 精密度 准确度 

分 类 号：X832[环境科学与工程—环境工程]