Practical methodology for the solubility speciation analysis of ambient dust deposits for heavy metals: application to a 6-month measurement campaign

被引：9

作者：

Brown, RJC ^{[1
]}

Shaw, MC ^{[1
]}

Roberts, MR ^{[1
]}

机构：

[1] Natl Phys Lab, Analyt Sci Grp, Teddington TW11 0LW, Middx, England

来源：

INTERNATIONAL JOURNAL OF ENVIRONMENTAL ANALYTICAL CHEMISTRY | 2006年 / 86卷 / 06期

关键词：

deposition; heavy metals; speciation; solubility; Bergerhoff gauge;

D O I：

10.1080/03067310500291627

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

A robust and accurate method for the quantitative determination of the water-soluble and water-insoluble, Ni, Cd, Pb and Zn contents of deposited ambient dust is presented. The extraction of the soluble metal phase from deposited ambient dust has been validated using commercially available ambient dust certified reference material. Results from a 6 month measurement campaign, from July to December 2004, are presented. Quantitative analysis of the two fractions, of different aqueous solubility (referred to here as 'solubility speciation analysis'), within deposited ambient dust is reported for the first time. Additionally, the two Bergerhoff dust deposit gauges used in parallel to acquire the dust deposit samples have shown good inter-sampler comparability. The measured total deposition fluxes compare well with those previously reported in urban and semi-rural locations around the UK.

引用

页码：453 / 460

页数：8

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