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Experimental assessment of a large sample cell for laser ablation-ICP-MS, and its application to sediment core micro-analysis
University of Insubria Department of Chemical and Environmental Science 22100 Como Italy.
Chalmers University of Technology Water Environment Technology, Department of Civil and Environmental Engineering .
Stockholm University, Faculty of Science, Department of Geological Sciences.
2010 (English)In: Mikrochimica Acta, ISSN 0026-3672, E-ISSN 1436-5073, Vol. 170, no 1-2, 39-45 p.Article in journal (Refereed) Published
Abstract [en]

The coupling of laser ablation (LA) to inductively coupled plasma-mass spectrometry (ICP-MS) enables the direct analysis of solid samples with micrometric resolution. Analysis is often restricted to relatively small samples owing to the dimensions of conventional ablation cells. Here, we assess the performance of a large rectangular, commercially-available sample cell which enables analysis over a 10.2 x 5.2 cm(2) area. Comparison with the conventional cell shows a small to moderate performance decrease for the large cell resulting from the dilution of ablated particles in a larger volume with a 4-31% lower signal output and longer signal tailings. The performance of this cell is however sufficient for the determination of both major and trace elements in many kinds of samples. The applicability of the large cell LA-ICP-MS setup was demonstrated by the determination of Al, Si, Mn, Fe, Cu, Zn Pb and U in sediment core sections at a resolution of 0.6 mm. Detection limits for sediment analysis were 7 mg Al kg(-1), 68 mg Si kg(-1), 0.5 mg Mn kg(-1), 20 mg Fe kg(-1), 0.2 mg Cu kg(-1), 0.3 mg Zn kg(-1), 0.08 mg Pb kg(-1) and 0.003 mg U kg(-1). Cyclic patterns, which would have been overlooked by conventional analysis at cm resolution, were observed in analysed sediments. This study demonstrates the potential of LA-ICP-MS in environmental analysis, with the large sample cell setup offering the possibility to analyse a wider range of samples without sectioning.

Place, publisher, year, edition, pages
Springer , 2010. Vol. 170, no 1-2, 39-45 p.
Keyword [en]
LA-ICP-MS, Large volume cell, Sediment core, Micro analysis, Trace elements
National Category
Earth and Related Environmental Sciences
URN: urn:nbn:se:su:diva-49472DOI: 10.1007/s00604-010-0377-2ISI: 000280076500006OAI: diva2:377970
authorCount :3 Available from: 2010-12-15 Created: 2010-12-14 Last updated: 2010-12-15Bibliographically approved

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Kylander, Malin E.
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