饮用水中9种卤代烃的吹扫捕集-气相色谱-质谱联用测定法

发布时间：2018-01-18 15:45

本文关键词：饮用水中9种卤代烃的吹扫捕集-气相色谱-质谱联用测定法　出处：《环境与健康杂志》2015年03期 　论文类型：期刊论文

【摘要】：目的建立了同时测定生活饮用水中二溴乙烷、二溴乙烯、三氯甲烷、四氯化碳、三氯乙烯、四氯乙烯、一溴二氯甲烷、二溴一氯甲烷、三溴甲烷等9种卤代烃的吹扫捕集-气相色谱-质谱联用方法。方法采用吹扫捕集的方法对水中的卤代烃进行富集,解吸后进入气相色谱-质谱联用仪,经色谱柱分离后,以质谱检测器测定。结果方法的线性范围分别为0.01~0.93μg/L(1,2-二溴乙烯)和0.01~0.80μg/L(其它8种卤代烃),检出限为0.002~0.004μg/L,回收率为84.4%~106%,RSD为1.0%~8.9%。结论该方法灵敏度高、重现性好、操作简单、无需有机溶剂,适用于水中二溴乙烷、二溴乙烯等9种卤代烃的测定。
[Abstract]:Objective to establish a simultaneous determination of dibromoethane, dibromoethylene, trichloromethane, carbon tetrachloride, trichloroethylene, tetrachloroethylene, monobromodichloromethane and dichloromethane in drinking water. Nine kinds of halogenated hydrocarbons, such as methyl tribromide, were combined with gas chromatography-mass spectrometry. Methods Halogenated hydrocarbons in water were enriched by purging and trapping, then desorbed and entered into gas chromatography-mass spectrometer. The linear range of the method was 0.01 渭 g / L ~ (-1) ~ 0.93 渭 g / L ~ (-1), respectively. 2-dibromoethylene (2-dibromoethylene) and 0.01n 0.80 渭 g / L (other eight halogenated hydrocarbons), the detection limit is 0.002 ~ 0.004 渭 g / L, and the recovery is 84.4%. Conclusion this method has the advantages of high sensitivity, good reproducibility, simple operation and no organic solvent. It is suitable for the determination of nine halogenated hydrocarbons such as dibromoethane and dibromoethylene in water.
【作者单位】：中国疾病预防控制中心环境与健康相关产品安全所;秦皇岛市疾病预防控制中心;
【基金】：原卫生部政策法规司2013年卫生标准制(修)订项目(20130107)
【分类号】：O657.63;R123.1
【正文快照】： 二溴乙烷作为一种汽油抗爆剂在石油行业有着广泛的应用,可以通过炼油厂的废水进入到环境水体中。二溴乙烷对人的呼吸系统、肝脏、心脏、脾脏和肾脏及生殖系统等多器官都有损伤,对皮肤和眼睛黏膜有刺激作用,被美国环保局(EPA)归为L/N组-人类可能致癌物质[1],在美国国家饮水标准

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