摘要
研究建立了吹扫 捕集法富集样品 ,利用HP 1大口径厚液膜通用型熔融石英毛细管柱 (30m× 0 .5 3mm×2 .6 5 μm) ,ECD检测器 ,测定水中 10种挥发性卤代烃的方法 ,确定了最佳吹扫 捕集条件 .结果表明 :水样体积为 5mL时 ,标准偏差在 0 .0 2～ 0 .0 7μg L之间 ,变异系数在 1.0 9%～ 3.2 8%之间 ,加标回收率为 94.0 %～ 10 7%之间 ,10种物质的检出限在 0 .0 7～ 0 .19μg
The optimum conditions of determination of volatile halogenated hydrocarbons in water by purge-and-trap gas chromatography have been studied, by using HP-1 silicon melting capillary column with big-diameter and thick liquid membrane, 10 different volatile halogenated hydrocarbons were trapped by purge-and-trap method and determined by ECD. The standard derivation and coefficient variation were 0.02～0.07 μg/L and 1.09 %～3.28 % respectively. The recoveries were ranged from 94.0 %～107 %. The detection limits were 0.07～0.19 μg/L.
出处
《分析测试技术与仪器》
CAS
2002年第3期161-164,共4页
Analysis and Testing Technology and Instruments
基金
盐城工学院科研资金资助
