Sampling and determination of gas phase divalent mercury in the air using a KCl coated denuder

被引：0
|
作者：
Z. Xiao
J. Sommar
S. Wei
O. Lindqvist
机构：
[1] Department of Inorganic Chemistry,
[2] Chalmers University of Technology and University of Göteborg,undefined
[3] S-412 96,undefined
[4] Göteborg,undefined
[5] Sweden,undefined
来源：
Fresenius' Journal of Analytical Chemistry | 1997年 / 358卷
关键词：
Mercury; Laboratory Test; Sampling Location; SnCl2; Average Efficiency;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
KCl coated denuders were employed for the measurement of divalent mercury (Hg2+) species in the air. Laboratory tests show that gaseous Hg2+ can be collected by the denuder with an average efficiency of 98% and elemental Hg will pass through it freely. Hg2+ trapped in the denuder can be quantitatively extracted by 1 mol/L HCl and analyzed by the method of SnCl2 reduction-CVAFS determination. Hg2+ concentrations of 0.04–0.15 ng m–3 corresponding to about 2–9% of the total gaseous mercury in the ambient air were determined at several sampling locations.
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页码：386 / 391
页数：5
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