Jump to main content
Jump to site search

Issue 5, 2015
Previous Article Next Article

Comparison of nickel speciation in workplace aerosol samples using sequential extraction analysis and X-ray absorption near-edge structure spectroscopy

Author affiliations

Abstract

There is a pressing need to further develop speciation knowledge of Ni workplace aerosols as the Zatka sequential extraction method used until now to speciate workplace Ni exposures has limitations. Here we compare the Zatka and XANES methods and evaluate XANES spectroscopy as a more appropriate and accurate technique for identifying nickel species in workplace aerosols. XANES spectroscopy is capable of identifying unique Ni species in the unaltered samples. Our findings indicate some significant departures in speciation assignment between the Zatka and XANES methods. In particular, the Zatka method can overestimate the soluble Ni fraction and it may underestimate the sulphidic and metallic fractions in some samples. Of particular importance, XANES is able to identify component sulphidic species. This information can lead to more accurate exposure matrices and more refined epidemiological analysis of respiratory cancer causation in sulphidic Ni processing.

Graphical abstract: Comparison of nickel speciation in workplace aerosol samples using sequential extraction analysis and X-ray absorption near-edge structure spectroscopy

Back to tab navigation

Supplementary files

Article information


Submitted
10 Nov 2014
Accepted
26 Jan 2015
First published
26 Jan 2015

Environ. Sci.: Processes Impacts, 2015,17, 922-931
Article type
Paper
Author version available

Comparison of nickel speciation in workplace aerosol samples using sequential extraction analysis and X-ray absorption near-edge structure spectroscopy

L. L. Van Loon, C. Throssell and M. D. Dutton, Environ. Sci.: Processes Impacts, 2015, 17, 922
DOI: 10.1039/C4EM00603H

Social activity

Search articles by author

Spotlight

Advertisements