摘要
目的采用吹扫捕集-气相色谱／质谱联用技术（P＆T-GC／MS）快速分析生活饮用水中多组分微量挥发性有机物（VOCs）。方法对解析时间、烘焙时间、烘焙流速、捕集阱填充材料和比例等P＆T的条件及GC条件进行优化，并对实际水样实测分析。结果本方法操作简单、省时，一次进样可实现多组分同时测定，具有较高的灵敏度和较广的分析范围，方法的线性范围为0．5～100μg／L，最低检出浓度可达0．01～0．5μg/L，相对标准偏差为1．24％～7．79％，加标回收率在90％～110％之间。结论本方法适用于生活饮用水中多组分微量VOCs的分析。
Objective To establish a method of purge and trap in combination with gas chromatograph/mass spectrometry（P＆T-GC/MS） for the rapid determination of minimum multi-mixture of volatile organic compounds（VOCs） in drinking water simultaneously. Methods The experimental conditions of P＆T,such as desorption temperature, desorption time, the type of the trap and the analytical conditions of GC were optimized. 54 VOCs in drinking water were determined by P＆T-GC/MS. Resdts The method enjoyed a wide linear range and good precision,the method detection limit（MDL） was 0.01 -0.5μg/L,the average recoveries of the method was 90% - 110% and the relative standard deviation （RSD） was 1.24%-7.79%. Conclusion The results showed that the method was accurate and high sensitivity and might be good for application and suitable for trace analysis of VOCs in drinking water.
出处
《卫生研究》
CAS
CSCD
北大核心
2006年第5期644-646,共3页
Journal of Hygiene Research
基金
广东省疾病预防控制中心专项经费资助项目
关键词
吹扫捕集
生活饮用水
挥发性有机物
purge and trap concentrator, drinking water, volatile organic compounds
