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

被引：68

作者：

Xiao, Z ^{[1
]}

Sommar, J ^{[1
]}

Wei, S ^{[1
]}

Lindqvist, O ^{[1
]}

机构：

[1] UNIV GOTHENBURG, S-41296 GOTHENBURG, SWEDEN

来源：

FRESENIUS JOURNAL OF ANALYTICAL CHEMISTRY | 1997年 / 358卷 / 03期

关键词：

D O I：

10.1007/s002160050434

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

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.

引用

页码：386 / 391

页数：6

共 19 条

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