摘要
采用吹扫捕集-气相色谱/质谱联用法测定水中9种酯类有机物,加入硫酸钠盐提高灵敏度,当硫酸钠过饱和时,吹扫捕集效率最高。9种酯类有机物在一定的质量浓度范围内线性关系良好,方法检出限为0.14μg/L～0.25μg/L,模拟样品平行测定的RSD为0.6%～1.8%,加标回收率为80%～106%。
The method was established for determination of nine ester compounds in water by gas chromatog- raphy-mass spectrometry with purge and trap. The sensitivity of method was improved by increasing sodium sul- fate quantity. Purge and trap obtained the highest efficiency when sodium sulfate became supersaturate. Calibra- tion curves exhibited good linearity in certain concentration. Detection limits ranged from 0. 14 μg/L to 0.25 μg/L. RSD of simulation duplicated samples ranged from 0.6% to 1,, 8%. The spiked recoveries ranged from 80% to 106%.
出处
《环境监测管理与技术》
2012年第5期55-57,共3页
The Administration and Technique of Environmental Monitoring
基金
江苏省环境保护厅科研专项基金资助项目(2011391)
江苏省环境监测科研基金资助项目(1004)
