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Talanta. 2005 Mar 15;65(5):1270-8. doi: 10.1016/j.talanta.2004.09.001.

Multielemental characterisation of cobalt by glow discharge quadrupole mass spectrometry.

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  • 1National Centre for Compositional Characterisation of Materials, Bhabha Atomic Research Centre, ECIL Post, Hyderabad 500062, India.

Abstract

Multielemental determination and the assessment of purity of cobalt metal used in the preparation of Ni-based super-alloys have been carried out by glow discharge quadrupole mass spectrometry (GD-QMS). Relative sensitivity factors (RSF) generated from certified iron matrix reference samples (NIST 663 and 664 low alloy steel pin standards) could be used for the determination of different trace element constituents of the sample. Different wet chemical procedures were also carried out for the determination of the trace constituents in the sample. The GD-QMS results are in reasonably good agreement with those obtained from wet chemical procedures, validating the use of the RSF values generated on low alloy steel standards for the computation of trace element concentrations in cobalt metal. A variety of molecular ions formed through the reaction of cobalt (matrix) with the discharge gas (argon) were also detected.

PMID:
18969941
DOI:
10.1016/j.talanta.2004.09.001
[PubMed]
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