金膜吸附-冷原子吸收光谱法测定空气中的汞  

Determination of Mercury in Air by Gold Film Adsorption-Cold Atomic Absorption Spectrophotometry

作　　者：范慧群 

机构地区：[1]上海市松江区环境监测站,上海201613

出　　处：《环境监测管理与技术》2013年第6期31-33,共3页The Administration and Technique of Environmental Monitoring

基　　金：国家自然科学基金资助项目(51079028);973计划课题基金资助项目(2010CB951102);上海市自然科学基金资助项目(10ZR1400300)

摘　　要：采用新型金膜吸附-冷原子吸收光谱法测定空气中的汞,在0μg/L～100μg/L范围内线性良好,相关系数为0.999 1。方法检出限为1.6 ng/m3,RSD为0.5%～2.7%,测定两种不同浓度的汞标准样品,相对误差为6.1%和3.2%。与两种现行国标方法(巯基棉富集和高锰酸钾溶液吸附法)比较,该方法所需试剂种类少,操作简便、吸附效率好,加标回收率高。The new type of gold film adsorption-cold atomic absorption spectrophotometric method was a-dopted to determine mercury in air .Good linearity was obtained within the concentration scope of 0 μg/L^100 μg/L, with the correlation coefficient 0.999 1.The detection limit come to be 1.6 ng/m3 , with the RSDs ranged from 0.5%to 2.7%.Relative errors were 6.1%and 3.2% respectively when two different concentra-tions of mercury standard samples were determined by the current method .Compared this method and the two kinds of the current national standard method （ Enrichment of sulfhydryl cotton and potassium permanganate solu-tion absorption method ） , this method needs less kinds of agents and is easy to handle .Meanwhile , this method show high adsorption efficiency and high spiked recoveries .

关 键 词：汞 金膜吸附 冷原子吸收光谱法 空气 

分 类 号：O657.31[理学—分析化学]