Influence of relative abundance of isotopes on depth resolution for depth profiling of metal coatings by laser ablation inductively coupled plasma mass spectrometry

A systematic study on the influence of relative abundance of isotopes of elements in the coating (Ac) and in the substrate (As) on both shape of time-resolved signals and depth resolution (Δz) was performed for depth profile analysis of metal coatings on metal substrates by ultraviolet (266 nm) nano...

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Autores: Fariñas, Juan C., Gómez Coedo, Aurora, Dorado López, María Teresa
Formato: artículo
Estado:Versión publicada
Fecha de publicación:2010
País:España
Recursos:Consejo Superior de Investigaciones Científicas (CSIC)
Repositorio:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:digital.csic.es:10261/221716
Acesso em linha:http://hdl.handle.net/10261/221716
Access Level:acceso abierto
Palavra-chave:Metal coatings
Depth profiling
Depth resolution
LA-ICP-MS
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spelling Influence of relative abundance of isotopes on depth resolution for depth profiling of metal coatings by laser ablation inductively coupled plasma mass spectrometryFariñas, Juan C.Gómez Coedo, AuroraDorado López, María TeresaMetal coatingsDepth profilingDepth resolutionLA-ICP-MSA systematic study on the influence of relative abundance of isotopes of elements in the coating (Ac) and in the substrate (As) on both shape of time-resolved signals and depth resolution (Δz) was performed for depth profile analysis of metal coatings on metal substrates by ultraviolet (266 nm) nanosecond laser ablation inductively coupled plasma quadrupole mass spectrometry. Five coated samples with coating thicknesses of the same order of magnitude (20-30 μm) were tested: nickel coating on aluminium, chromium and copper, and steel coated with copper and zinc. A laser repetition rate of 1 Hz and a laser fluence of 21 J cm-2 were used. Five different depth profile types were established, which showed a clear dependence on Ac/As ratio. In general, depth profiles obtained for ratios above 1-10 could not be used to determine Δz. We found that Δz increased non-linearly with Ac/As ratio. The best depth profile types, leading to highest depth resolution and reproducibility, were attained in all cases by using the isotopes with low/medium Ac values and with the highest As values. In these conditions, an improvement of up to 4 times in Δz values was achieved. The average ablation rates were in the range from 0.55 μm pulse-1 for copper coating on steel to 0.83 μm pulse-1 for zinc coating on steel, and the Δz values were between 2.74 μm for nickel coating on chromium and 5.91 μm for nickel coating on copper, with RSD values about 5-8%. © 2009 Elsevier B.V. All rights reserved.This work was carried out with financial support from the Spanish Ministry of Education and Science under Contracts MAT2005-00348 and MAT2009-14369-C02-01ElsevierMinisterio de Educación y Ciencia (España)Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]2020202020102020info:eu-repo/semantics/articlehttp://purl.org/coar/resource_type/c_6501Publisher's versioninfo:eu-repo/semantics/publishedVersionhttp://hdl.handle.net/10261/221716reponame:DIGITAL.CSIC. Repositorio Institucional del CSICinstname:Consejo Superior de Investigaciones Científicas (CSIC)Ingléshttp://dx.doi.org/10.1016/j.talanta.2009.11.072Síinfo:eu-repo/semantics/openAccessoai:digital.csic.es:10261/2217162026-05-22T06:33:51Z
dc.title.none.fl_str_mv Influence of relative abundance of isotopes on depth resolution for depth profiling of metal coatings by laser ablation inductively coupled plasma mass spectrometry
title Influence of relative abundance of isotopes on depth resolution for depth profiling of metal coatings by laser ablation inductively coupled plasma mass spectrometry
spellingShingle Influence of relative abundance of isotopes on depth resolution for depth profiling of metal coatings by laser ablation inductively coupled plasma mass spectrometry
Fariñas, Juan C.
Metal coatings
Depth profiling
Depth resolution
LA-ICP-MS
title_short Influence of relative abundance of isotopes on depth resolution for depth profiling of metal coatings by laser ablation inductively coupled plasma mass spectrometry
title_full Influence of relative abundance of isotopes on depth resolution for depth profiling of metal coatings by laser ablation inductively coupled plasma mass spectrometry
title_fullStr Influence of relative abundance of isotopes on depth resolution for depth profiling of metal coatings by laser ablation inductively coupled plasma mass spectrometry
title_full_unstemmed Influence of relative abundance of isotopes on depth resolution for depth profiling of metal coatings by laser ablation inductively coupled plasma mass spectrometry
title_sort Influence of relative abundance of isotopes on depth resolution for depth profiling of metal coatings by laser ablation inductively coupled plasma mass spectrometry
dc.creator.none.fl_str_mv Fariñas, Juan C.
Gómez Coedo, Aurora
Dorado López, María Teresa
author Fariñas, Juan C.
author_facet Fariñas, Juan C.
Gómez Coedo, Aurora
Dorado López, María Teresa
author_role author
author2 Gómez Coedo, Aurora
Dorado López, María Teresa
author2_role author
author
dc.contributor.none.fl_str_mv Ministerio de Educación y Ciencia (España)
Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]
dc.subject.none.fl_str_mv Metal coatings
Depth profiling
Depth resolution
LA-ICP-MS
topic Metal coatings
Depth profiling
Depth resolution
LA-ICP-MS
description A systematic study on the influence of relative abundance of isotopes of elements in the coating (Ac) and in the substrate (As) on both shape of time-resolved signals and depth resolution (Δz) was performed for depth profile analysis of metal coatings on metal substrates by ultraviolet (266 nm) nanosecond laser ablation inductively coupled plasma quadrupole mass spectrometry. Five coated samples with coating thicknesses of the same order of magnitude (20-30 μm) were tested: nickel coating on aluminium, chromium and copper, and steel coated with copper and zinc. A laser repetition rate of 1 Hz and a laser fluence of 21 J cm-2 were used. Five different depth profile types were established, which showed a clear dependence on Ac/As ratio. In general, depth profiles obtained for ratios above 1-10 could not be used to determine Δz. We found that Δz increased non-linearly with Ac/As ratio. The best depth profile types, leading to highest depth resolution and reproducibility, were attained in all cases by using the isotopes with low/medium Ac values and with the highest As values. In these conditions, an improvement of up to 4 times in Δz values was achieved. The average ablation rates were in the range from 0.55 μm pulse-1 for copper coating on steel to 0.83 μm pulse-1 for zinc coating on steel, and the Δz values were between 2.74 μm for nickel coating on chromium and 5.91 μm for nickel coating on copper, with RSD values about 5-8%. © 2009 Elsevier B.V. All rights reserved.
publishDate 2010
dc.date.none.fl_str_mv 2010
2020
2020
2020
dc.type.none.fl_str_mv info:eu-repo/semantics/article
http://purl.org/coar/resource_type/c_6501
Publisher's version
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/10261/221716
url http://hdl.handle.net/10261/221716
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv http://dx.doi.org/10.1016/j.talanta.2009.11.072
Sí
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.publisher.none.fl_str_mv Elsevier
publisher.none.fl_str_mv Elsevier
dc.source.none.fl_str_mv reponame:DIGITAL.CSIC. Repositorio Institucional del CSIC
instname:Consejo Superior de Investigaciones Científicas (CSIC)
instname_str Consejo Superior de Investigaciones Científicas (CSIC)
reponame_str DIGITAL.CSIC. Repositorio Institucional del CSIC
collection DIGITAL.CSIC. Repositorio Institucional del CSIC
repository.name.fl_str_mv
repository.mail.fl_str_mv
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