吹扫捕集气相色谱(FID)内标法测定水中28种挥发性有机物  

Determination of 28 Kinds of Volatile Organic Compounds in Water with Internal Standard Method in Purge and Trap Gas Chromatography (FID)

作　　者：郭琴[1] 丛庆美 张吉芬[1] 张金波[1] 

机构地区：[1]威海市疾病预防控制中心,山东威海264200

出　　处：《预防医学论坛》2010年第2期144-148,共5页Preventive Medicine Tribune

摘　　要：[目的]建立同时分析《GB／T5749—2006生活饮用水卫生标准》中多种挥发性有机物组分的分析方法。[方法]采用吹扫捕集方法富集待测组分，用气相色谱FID检测器内标方法定量分析。[结果]28种挥发性有机物可以同时进行测定．分析方法的线性范围：芳烃及其衍生物在4～40μgL，卤代烷烃在20-200μg／L。各组分回收率均在95％～101％之间。各组分变异系数多数〈5％。[结论]该方法同时分析生活饮用水28种挥发性有机物，除四氯化碳（捡测下限不能满足）外其余组分完全满足对《GB／T5749—2006生活饮用水卫生标准》挥发性有机物评价的需求。[Objective]To establish and analyze the analytical method of volatile organic components in ＂GB / T 5749- 2006 hygienic standard of drinking water ＂. [Methods]The component under test was enriched with purge and trap method and quantitative analysis was conducted with internal standard method of FID detector GC. [Results]28 kinds of volatile organic compounds can be simultaneously detected, The linear range of the analytical methods was as follows： the linear range of arene and its derivatives was from 4 to 40 μg/L, halogenated hydrocarbons was from 20 to 200 μg/L. The recovery of all components was from 95 % to 101%,the coefficient of variation in each group tested was 〈5 %. [Conclusion]The method can be used to simultaneously analyze 28 kinds of volatile organic compounds in drinking water, except carbon tetrachloride （detection limit can not meet the requirement） ,the other group tested can meet the standard of the evaluation of volatile organic compound in ＂GB / T 5749-2006 hygienic standards of drinking water ＂.

关 键 词：生活饮用水 挥发性有机物 吹扫捕集 气相色谱法 FID检测器 

分 类 号：R123.1[医药卫生—环境卫生学]