预浓缩气相色谱-质谱技术测定气体中六氟化硫  

Analysis and Evaluation the Determination Method of Sulfur Hexafluoride by Using Preconcentration System and GC-MS

作　　者：周圆[1] 潘学军[2] 杨良[3] 

机构地区：[1]昆明市环境监测中心,云南昆明650228 [2]昆明理工大学,云南昆明650093 [3]云南省环境监测中心站,云南昆明650034

出　　处：《中国环境监测》2012年第5期99-102,共4页Environmental Monitoring in China

摘　　要：六氟化硫(SF6)是《京都议定书》所列的温室效应较强的一种温室气体。建立了气相色谱-质谱联用(GC-MS)、大气预浓缩系统分析测定气体中六氟化硫的方法。实验结果表明,该方法测定SF6气体的相对标准偏差为8.41%,线性范围为17.2×10-12～645×10-12,回收率为81.08%,方法检出限为5.28×10-12。该方法操作简便准确,分析时间短,适用于实验室分析。Kyoto Protocol stipulated Sulfur hexafluoride （ SF6 ） as a greenhouse gas. A reliable GC-MS and Preconcentration system was established for SF6 in sample of gas. The result demonstrated that the accuracy RSD range of 8.41% , the linear range from17.2× 10^-12 to 645 ×10^-12, recoveries range of 81.08%. The method detection limit was 5.28 × 10^-12 The determination method with the advantages of easy and simple to handle and accuracy. It was suitable for lab analysis with short time.

关 键 词：气相色谱-质谱联用仪 空气预浓缩仪 六氟化硫 

分 类 号：X16[环境科学与工程—环境科学]