A comparative study using differents resins to determine thorium isotopes

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dc.contributor.authorROSA, MYCHELLE M.L.
dc.contributor.authorTADDEI, MARIA H.T.
dc.contributor.authorCHEBERLE, LUAN T.V.
dc.contributor.authorSILVA, PAULO S.C.
dc.contributor.authorMAIHARA, VERA A.
dc.coverageInternacionalpt_BR
dc.creator.eventoINTERNATIONAL NUCLEAR ATLANTIC CONFERENCEpt_BR
dc.date.accessioned2018-01-08T16:36:24Z
dc.date.available2018-01-08T16:36:24Z
dc.date.eventoOctober 22-27, 2017pt_BR
dc.description.abstractThorium is a naturally occurring radioactive element that is widely distributed in the crust of the Earth. This element is very common in mineral formations in regions with high levels of natural radioactivity, therefore, its determination in environmental samples is important. Thorium isotopes (228Th, 230Th, and 232Th) were determined in a reference material, the IAEA Soil 327 sample, to validate the two methods employed using different resins. The initial preparation with acid dissolution is the same to both, in the first is used anion exchange resin (DOWEX 1x2) and electrodeposition in silver planchets. And in the second method is used a specific chromatographic resin (TEVA) and cerium fluoride microprecipitation. At the end both analysis are quantified by alpha spectrometry. The two methods the results obtained were satisfactory for the reference material used, with relative error of less than 4% for 228Th, 230Th, and 232Th. The main differences found between them were spectrums resolutions, time and cost of analysis.pt_BR
dc.event.siglaINACpt_BR
dc.identifier.citationROSA, MYCHELLE M.L.; TADDEI, MARIA H.T.; CHEBERLE, LUAN T.V.; SILVA, PAULO S.C.; MAIHARA, VERA A. A comparative study using differents resins to determine thorium isotopes. In: INTERNATIONAL NUCLEAR ATLANTIC CONFERENCE, October 22-27, 2017, Belo Horizonte, MG. <b>Proceedings...</b> Rio de Janeiro, RJ: Associação Brasileira de Energia Nuclear, 2017. Disponível em: http://repositorio.ipen.br/handle/123456789/28244.
dc.identifier.orcidhttps://orcid.org/0000-0002-9351-9201
dc.identifier.urihttp://repositorio.ipen.br/handle/123456789/28244
dc.localRio de Janeiro, RJpt_BR
dc.local.eventoBelo Horizonte, MGpt_BR
dc.publisherAssociação Brasileira de Energia Nuclearpt_BR
dc.rightsopenAccesspt_BR
dc.subjectalpha spectroscopy
dc.subjectcalibration standards
dc.subjectcerium fluorides
dc.subjectcomparative evaluations
dc.subjectelectrodeposition
dc.subjectprecipitation
dc.subjectresins
dc.subjectthorium isotopes
dc.titleA comparative study using differents resins to determine thorium isotopespt_BR
dc.typeTexto completo de eventopt_BR
dspace.entity.typePublication
ipen.autorVERA AKIKO MAIHARA
ipen.autorPAULO SERGIO CARDOSO DA SILVA
ipen.autorMYCHELLE MUNYCK LINHARES ROSA
ipen.codigoautor606
ipen.codigoautor2777
ipen.codigoautor8003
ipen.contributor.ipenauthorVERA AKIKO MAIHARA
ipen.contributor.ipenauthorPAULO SERGIO CARDOSO DA SILVA
ipen.contributor.ipenauthorMYCHELLE MUNYCK LINHARES ROSA
ipen.date.recebimento18-01pt_BR
ipen.event.datapadronizada2017pt_BR
ipen.identifier.ipendoc24069pt_BR
ipen.notas.internasProceedingspt_BR
ipen.type.genreArtigo
relation.isAuthorOfPublication564acfd8-391d-4db7-8794-ac210355d82e
relation.isAuthorOfPublicationaa898df6-ea14-482c-bc29-b45954bb0542
relation.isAuthorOfPublication4ae47c5f-4029-43dd-9702-678437864926
relation.isAuthorOfPublication.latestForDiscovery4ae47c5f-4029-43dd-9702-678437864926
sigepi.autor.atividadeROSA, MYCHELLE M.L.:8003:320:Spt_BR
sigepi.autor.atividadeSILVA, PAULO S.C.:2777:320:Npt_BR
sigepi.autor.atividadeMAIHARA, VERA A.:606:320:Npt_BR
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