气相色谱/质谱联用法测定环境空气中恶臭类硫化物  

Determination of Sulfur Compounds in Ambient Air by GC/MS

作　　者：戴军升[1] 

机构地区：[1]上海市环境监测中心,上海200030

出　　处：《环境监测管理与技术》2010年第5期42-44,共3页The Administration and Technique of Environmental Monitoring

摘　　要：采用冷阱预浓缩-气相色谱/质谱联用法测定环境空气中硫化氢、甲硫醇、甲硫醚、二硫化碳、二甲二硫、噻吩等6种硫化物,讨论了采样容器材质的影响。方法线性良好,6种硫化物的检出限为1.0μg/m3～5.0μg/m3,混合标准气平行测定的RSD≤8.1%,加标回收率为93.5%～97.3%。Sulfureted hydrogen,methanthiol,dimethyl sulfide,carbon disulfide,dimethyl disulfide and thiofuran in ambient air were determined by GC/MS with a trap concentrator.The influence of materials about sampling containers was discussed.Results showed good linearity of method was obtained.Detection limits of 6 kinds of sulfides were between 1.0 μg/m^3 and 5.0 μg/m^3.RSD of parallel samples of mixed standard gases was≤8.1%.Spiked recoveries of samples were between 93.5% and 97.3%.

关 键 词：硫化物 气相色谱/质谱联用法 环境空气 

分 类 号：O657.71[理学—分析化学]