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Title: The determination of molybdenum in a sea-water candidate reference material by inductively-coupled plasma-mass spectrometry
Authors: Vanhaecke, F
Goossens, J
Dams, R
Vandecasteele, Carlo
Issue Date: Jul-1993
Publisher: Elsevier science bv
Series Title: Talanta vol:40 issue:7 pages:975-979
Abstract: In the framework of a certification campaign organized by BCR (Bureau Communautaire de Reference, Commission of the European Communities, Brussels) molybdenum was determined in a sea water candidate reference material (BCR CRM 403) using inductively coupled plasma-mass spectrometry. The determination was hampered by both non-spectral (signal suppression) and spectral interferences. Ten-fold dilution of the sea water and the use of a carefully selected internal standard allowed accurate correction for the signal suppression. Spectral interferences on Mo nuclides could mainly be attributed to BrO+ and BrOH+ ions. At the level of spectral overlap encountered, these interferences could be corrected for with sufficient accuracy by matrix matching of the blank for Br or by application of a mathematical correction method involving resolvation of a pair of simultaneous equations. Results obtained after application of anion exchange to separate Br from Mo confirmed the results obtained using the correction methods, proving the validity of the latter. A good agreement is established by comparison of the ICP-MS result with those obtained by other techniques in other laboratories.
URI: 
ISSN: 0039-9140
Publication status: published
KU Leuven publication type: DI
Appears in Collections:Process Engineering for Sustainable Systems Section

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