Issue 2, 2010
From the journal:

Journal of Analytical Atomic Spectrometry

Analyses of lithium-doped and pure magnesium diboride using ultraviolet nano- and femtosecond laser ablation inductively coupled plasma mass spectrometry

M. Wälle,†a   J. Koch,a   D. Tabersky,a   K. Hametner,a   N. D. Zhigadlo,b   S. Katrych,b   J. Karpinskib  and  D. Günther*a  

* Corresponding authors

a ETH Zurich, Laboratory of Inorganic Chemistry, Wolfgang-Pauli-Strasse 10, Zurich, Switzerland
E-mail: guenther@inorg.chem.ethz.ch
Fax: +41 44 633 10 71
Tel: +41 44 632 46 87

b ETH Zurich, Laboratory for Solid State Physics, Schafmattstrasse 16, Zurich, Switzerland

Abstract

Lithium-doped and pure magnesium diboride crystals were quantified by nanosecond and femtosecond laser ablation inductively coupled plasma mass spectrometry (LA-ICP-MS). In both cases, non-matrix matched calibration using a silicate glass (NIST SRM 610) was performed. The application of nanosecond LA-ICP-MS resulted in a boron and magnesium stoichiometry of MgB. In contrast, data obtained by femtosecond LA-ICP-MS indicate a boron and magnesium stoichiometry of MgB2, which was supported by supplementary measurements on the basis of X-ray diffraction using peak refinement. Concentration discrepancies of main constituents that suggest a wrong stoichiometry, as found for ns-LA-ICP-MS, have not yet been reported and can, therefore, be considered an example of extreme laser-induced elemental fractionation.

Graphical abstract: Analyses of lithium-doped and pure magnesium diboride using ultraviolet nano- and femtosecond laser ablation inductively coupled plasma mass spectrometry

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Article information

DOI
https://doi.org/10.1039/B914547H
Article type
Technical Note
Submitted
21 Jul 2009
Accepted
27 Oct 2009
First published
02 Nov 2009

J. Anal. At. Spectrom., 2010,25, 193-195

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Analyses of lithium-doped and pure magnesium diboride using ultraviolet nano- and femtosecond laser ablation inductively coupled plasma mass spectrometry

M. Wälle, J. Koch, D. Tabersky, K. Hametner, N. D. Zhigadlo, S. Katrych, J. Karpinski and D. Günther, J. Anal. At. Spectrom., 2010, 25, 193 DOI: 10.1039/B914547H

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