吹扫捕集-气质联用法测定水中9种酯类物质  

Determination of Nine Esters Compounds in Water by Chromatographic-mass Spectrometry with Purge and Trap

作　　者：戴玄吏 李丹[2] 陈昕丽[3] 余益军 章霖之 

机构地区：[1]常州市环境监测中心,江苏常州213001 [2]常州大学环境与安全工程学院,江苏常州213001 [3]南京林业大学森林资源与环境学院,江苏南京210037

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)

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%.

关 键 词：酯类物质 吹扫捕集 气相色谱/质谱联用法 水质 

分 类 号：O657.63[理学—分析化学]