摘要
目的：建立吹扫捕集气相色谱质谱联用法快速测定自来水中28种挥发性有机物,了解某市自来水中挥发性有机物的污染状况。方法：采用吹扫捕集方法对样品进行吹脱、吸附、烘烤、吹扫后,用气相色谱质谱联用仪进行定性定量测定。结果：在本实验条件下,利用气相色谱质谱联用法能快速检测自来水中28种挥发性有机物,方法线性良好,最低检出限0.001~0.01μg/L,回收率85.5%~108.6%,相关系数大于0.996。结论：该方法能同时检测自来水中28种挥发性有机物,简单易操作,精密度较好,结果较满意。
Objective：To establish a method to determine 28 volatile organic compounds in tap water by purge and trap with gas chromatograph/mass spectrometer to inverstigate the content of volatile organic compounds in tap water in the city.Methods：Tap water sample was purged,traped and desorbed,then detected by GC/MS.Results：Under the analysis condition,28 volatile organic compounds in tap water were detected by purge and trap with gas chromatograph/mass spectrometer.The method enjoyed a good linear tendency and the detection limits（MDL） were 0.001~0.01 μg/L.The recoveries of the method were 85.5%~108.6%,the correlation coefficient was greater than 0.996.Conclusion：The method is accurate and easy to practice and can be applied to detect 28 volatile organic compounds in tap water.
出处
《中国卫生检验杂志》
CAS
2009年第11期2528-2530,共3页
Chinese Journal of Health Laboratory Technology
关键词
气相色谱质谱联用
吹扫捕集
挥发性有机物
自来水
Gas chromatography/mass spectrometer
Purge and trap
Volatile organic compounds
Tap water
