Please use this identifier to cite or link to this item: http://repositorio.unicamp.br/jspui/handle/REPOSIP/94209
Type: Artigo de periódico
Title: Determination Of Platinum-group Elements In Geological Reference Materials By High Resolution-icp-ms After Nickel Sulfide Fire-assay Collection And Te Co-precipitation
Author: Morcelli C.P.R.
Figueiredo A.M.G.
Enzweiler J.
Sarkis J.E.S.
Jorge A.P.S.
Kakazu M.
Abstract: Inductively coupled plasma-mass spectrometry (ICP-MS) after NiS fire assay-Te co-precipitation was employed in the determination of Ru, Rh, Pd, Os, Ir and Pt at ng g-1 levels in six platinum-group element (PGE) geological reference materials. In general, the average of several results was in good agreement with the certified values taking into account respective uncertainties. High relative standard deviations were observed for the reference materials GPt-3 and GPt-4. Problems associated with the NiS fire assay procedure and PGE determination at the sub-10 ng g-1 level are reviewed and discussed.
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Rights: fechado
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Address: http://www.scopus.com/inward/record.url?eid=2-s2.0-33646660247&partnerID=40&md5=6593f58aae1981e6407c8f7bca0d3519
Date Issue: 2004
Appears in Collections:Unicamp - Artigos e Outros Documentos

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