摘要
目的:建立生活饮用水中18种芳香烃类化合物的吹扫捕集/气相色谱-质谱联用测定方法。方法:采用吹扫捕集富集水中的苯系物,解吸后用色谱-质谱联用法测定,内标标准曲线法定量。结果:方法最低检出浓度为0.008μg/L～0.582μg/L,标准曲线相关系数均大于0.9976,响应因子的相对标准偏差小于3.87%,样品加标回收率在89.7%～106.8%之间。结论:本法干扰小、分离度好、灵敏度高、结果准确、操作简便,对多种水样适应性好,适合于生活饮用水中18种芳香烃类化合物的同时分析。
Objective：To establish a method for determination of 18 aromatic compounds in drinking water by purge and trap gas chromatography/mass spectrometry. Methods： Aromatic compounds in water were purged and trapped, then desorbed and analyzed by gas chromatography/mass spectrometry. Internal standard curve method was used for quantitation. Results： The correlation coefficients of the method for 18 target compounds were greater than 0. 9976 and their minimum detection limits （MDL） were 0. 008 μg/L - 0. 582 μg/L, the average recoveries of the method was 89.7% - 106.8% with the relative standard deviation （RSD） less than 3.87%. Conclusion： This method is simple, rapid, sensitive and accurate and it is suitable for simultaneous determination of 18 aromatic com- pounds in drinking water.
出处
《中国卫生检验杂志》
北大核心
2012年第10期2292-2295,共4页
Chinese Journal of Health Laboratory Technology
