Micrometer-Resolved Binding of Lead to Iron in Urban River Sediments
Sebastien Rauch A B C and Gregory M. Morrison BA Department of Civil and Environmental Engineering, 48-108, Massachusetts Institute of Technology, Cambridge MA 02139, USA.
B Water Environment Transport, Chalmers University of Technology, 412 96 Göteborg, Sweden.
C Author to whom correspondence should be addressed (e-mail: sebr@mit.edu).
Australian Journal of Chemistry 57(10) 921-924 https://doi.org/10.1071/CH04066
Submitted: 22 March 2004 Accepted: 3 July 2004 Published: 1 October 2004
Abstract
Recent developments in laser microprobes and the coupling of laser ablation (LA) to inductively coupled plasma mass spectrometry (ICP-MS) has opened up the possibility for detailed analysis of individual sediment grains and the elucidation of metal association with bulk elements and phases. Here, LA–ICP-MS is used for the micrometer-resolved, multi-element analysis of Pb and bulk elements such as Fe, Mg, Al, and Si. Normalized Pb signals show a clear association to Fe coatings at the surface of the particles.
Acknowledgments
The authors acknowledge financial support from the Swedish Environmental Protection Agency and the Swedish Research Council for Environment, Agricultural Sciences, and Spatial Planning (FORMAS).
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