Issue 6, 2010

Quantitative determination of nitrogen by LA-ICP-MS using 15N enriched binary calcium nitrides

Abstract

The quantification capabilities for nitrogen with laser ablation-inductively coupled plasma-mass spectrometry (LA-ICP-MS) were studied. The investigations were carried out on binary calcium nitrides (Ca2N, α-Ca3N2, β-Ca3N2) prepared either with 14N or 15N. Whereas the detection of 14N is completely hampered by interference with nitrogen originating from air, a distinct signal of 15N is detectable. Based on this knowledge the ablation parameters were optimized with respect to the signal intensity of 15N. Subsequently, 15N was determined by use of three different quantification strategies which are presented in detail. So far, the precision and accuracy is about ±5%. Limits of detection of 15N were determined as 5 mg g−1.

Graphical abstract: Quantitative determination of nitrogen by LA-ICP-MS using 15N enriched binary calcium nitrides

Article information

Article type
Paper
Submitted
03 Feb 2010
Accepted
05 Mar 2010
First published
25 Mar 2010

J. Anal. At. Spectrom., 2010,25, 856-860

Quantitative determination of nitrogen by LA-ICP-MS using 15N enriched binary calcium nitrides

M. Böhme, P. Höhn, D. Günther, R. Kniep and G. Auffermann, J. Anal. At. Spectrom., 2010, 25, 856 DOI: 10.1039/C002324H

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