离子色谱法测定环境空气中的二氧化硫  

Determination of Sulfur Dioxide in Ambient Air by Using Ion Chromatography

作　　者：陈诚[1] 

机构地区：[1]江苏省环境监测中心,江苏南京210036

出　　处：《污染防治技术》2015年第3期62-63,72,共3页Pollution Control Technology

摘　　要：建立以2%三乙醇胺和10%双氧水的混合溶液作为吸收液采集空气中二氧化硫,采样后用离子色谱法测定。若用吸收液10 m L,采样体积为30 L,二氧化硫最低检出浓度为0.007 mg/m3,与国标法相比检出限相差不大。方法简单快速,精密度和准确度好,避免有毒化学溶剂的使用,能满足环境空气中二氧化硫的测定的要求。The mixed solution of 2% triethanolamine and 10% hydrogen peroxide as the absorption of sulfur dioxide in air liquid collection was established,and after sampling,the samples were measured by ion chromatography. If the absorption liquid of 10 m L,sampling volume 30 L,the minimum detectable sulfur dioxide,concentration was 0. 007 mg / m3,as compared with the national standard method,the detection limits had little difference. The method was simple and rapid,had good precision and accuracy,and could avoid the use of toxic chemical solvents,and could meet the requirements of cletermination of sulfur dioxide in ambient air.

关 键 词：离子色谱法 环境空气 二氧化硫 

分 类 号：X823[环境科学与工程—环境工程]