A NEW SENSITIVE AND PORTABLE MERCURY-VAPOR ANALYZER GARDIS-1A

被引：47

作者：

URBA, A

KVIETKUS, K

SAKALYS, J

XIAO, Z

LINDQVIST, O

机构：

[1] CHALMERS UNIV TECHNOL,DEPT INORGAN CHEM,S-41296 GOTHENBURG,SWEDEN

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

来源：

WATER AIR AND SOIL POLLUTION | 1995年 / 80卷 / 1-4期

关键词：

D O I：

10.1007/BF01189794

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

A possibility to build a mercury (Hg) analyzer based on the cold vapor atomic absorption spectrometry (CVAAS) with a sub-picogram detection limit was investigated. Construction of the gold traps and the optical cell, carrier gas flow rate and gold traps heating power were chosen in order to effectively concentrate sampled Hg vapor and to obtain highest possible response in the optical and electronic system. The newly created analyzer is able to detect 0.5 pg of elemental Hg vapor. Optimization of construction resulted in stable performance and good selectivity for gaseous Hg of the analyzer. The instrument is commercially available.

引用

页码：1305 / 1309

页数：5