我国部分商品瓶装饮用水中挥发性有机物的研究

应用Tekmar3000吹扫捕集－气相色谱质谱组合分析仪，参照US EPA的标准分析方法，对我国某些商品瓶装饮用水中挥发性有机物进行了定量分析，结果表明，其含量一般在1～8μg/L，其中普遍含有具三致潜力的卤代烃与苯系物。虽然这些毒理性指标均可达到我国瓶装饮用纯净水卫生标准，但与国外优质瓶装饮用水相比，存在明显的差距。瓶装饮用水中挥发性有机物主要与深度处理技术和组合工艺有关，可通过改进这些技术而得以有效控制。

Study on Volatile Organic Compounds in Some Bottled Water for Drinking Produced in China

By using a system combining Tekmar 3000 purge and trapconcentrator with HP 5972 GC/MSD,with reference to the US EPA standard test methods,a quantitative analysis on volatile organic compounds (VOCs) in some bottled waters for drinking produced in China was made.The results showed that all of these bottled waters contain a minor amount of VOCs,mostly in the range of 1.0～8.0 μg/L,including halogenated hydrocarbons and BTEX which are carcinogenic and mutagenic chemicals.It was noted that the VOCs in these bottled waters are obviously higher than that in two types of well-known bottled water from France although they are much lower than Chinese national standard of bottled water for drinking.The VOCs in the bottled waters are mainly related to the techniques and their combination to be used to purify the waters,and can be removed by improving these techniques.