吹扫-捕集/气相色谱-质谱联用法测定城市饮用水中挥发性卤代烃
GC-MS Determination of Volatile Halohydrocarbons in City Drinking Water with Purge and Trap Sample Concentrator
摘 要
采用吹扫-捕集器富集了城市饮用水样中11种挥发性卤代烃,经气相色谱法分离后用质谱法选择性离子监测模式进行定量测定,所测定的卤代烃,除含量相对较高的三氯甲烷外,线性范围在0.04~11.0 μg·L-1之间;检出限(S/N=3)均小于6 pg·L-1.对方法的回收率及精密度作了试验,测得回收率在85.6%~126.1%之间,相对标准偏差(n=7)在2.06%~3.87%之间.
吹扫-捕集
城市饮用水
挥发性卤代烃
Hyphenation of GC and MS
Purge and trap
City drinking water
Volatile halohydrocarbons
Abstract
Eleven volatile halohydrocarbons in water sample were enriched by the purge and trap sample concentrator,separated by GC and determined by MS under the mode of SIM. Ranges of linearity of the halohydrocarbons determined were obtained from 0.04 to 11.0 μg·L-1 besides chloroform. Detection limits (S/N=3) were found to be less than 6 pg·L-1. Recovery and precision of the method were tested,giving values of recovery in the range of 85.6%-126.1%,and values of RSD′s (n=7) in the range of 2.06%-3.87%.
中图分类号 O657.7
所属栏目 工作简报
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收稿日期 2007/4/6
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备注华树岸(1977-),男,广西宾阳县人,工程师,主要从事水质分析研究工作.
引用该论文: HUA Shu-an. GC-MS Determination of Volatile Halohydrocarbons in City Drinking Water with Purge and Trap Sample Concentrator[J]. Physical Testing and Chemical Analysis part B:Chemical Analysis, 2008, 44(9): 840～842
华树岸. 吹扫-捕集/气相色谱-质谱联用法测定城市饮用水中挥发性卤代烃[J]. 理化检验－化学分册, 2008, 44(9): 840～842
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