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Experimental assess...
Experimental assessment of a large sample cell for laser ablation-ICP-MS, and its application to sediment core micro-analysis
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- Carugati, Gabriele, 1980 (författare)
- Chalmers tekniska högskola,Chalmers University of Technology,University of Insubria Department of Chemical and Environmental Science 22100 Como Italy
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- Rauch, Sebastien, 1971 (författare)
- Chalmers tekniska högskola,Chalmers University of Technology,Chalmers University of Technology Water Environment Technology, Department of Civil and Environmental Engineering
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- Kylander, Malin E. (författare)
- Stockholms universitet,Institutionen för geologiska vetenskaper
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(creator_code:org_t)
- 2010-05-26
- 2010
- Engelska.
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Ingår i: Mikrochimica Acta. - : Springer Science and Business Media LLC. - 1436-5073 .- 0026-3672. ; 170:1-2, s. 39-45
- Relaterad länk:
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http://dx.doi.org/10...
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https://doi.org/10.1...
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Abstract
Ämnesord
Stäng
- 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.
Ämnesord
- NATURVETENSKAP -- Kemi (hsv//swe)
- NATURAL SCIENCES -- Chemical Sciences (hsv//eng)
- NATURVETENSKAP -- Geovetenskap och miljövetenskap (hsv//swe)
- NATURAL SCIENCES -- Earth and Related Environmental Sciences (hsv//eng)
Nyckelord
- plasma-mass spectrometry
- performance
- elements
- Trace
- Sediment core
- Large volume cell
- LA-ICP-MS
- Micro analysis
- Earth sciences
Publikations- och innehållstyp
- art (ämneskategori)
- ref (ämneskategori)
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