X-ray scattering processes and chemometrics for differentiating complex samples using conventional EDXRF equipment

Detalhes bibliográficos
Autor(a) principal: Bueno, Maria Izabel Maretti Silveira
Data de Publicação: 2005
Outros Autores: Castro, Martha Teresa Pantoja de Oliveira, Souza, Aline Moreira de, Oliveira, Erica Borges Santana de, Teixeira, Alete Paixão
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Institucional da UFBA
Texto Completo: http://repositorio.ufba.br/ri/handle/ri/13624
Resumo: Texto completo: acesso restrito.P.96–102
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spelling Bueno, Maria Izabel Maretti SilveiraCastro, Martha Teresa Pantoja de OliveiraSouza, Aline Moreira deOliveira, Erica Borges Santana deTeixeira, Alete PaixãoBueno, Maria Izabel Maretti SilveiraCastro, Martha Teresa Pantoja de OliveiraSouza, Aline Moreira deOliveira, Erica Borges Santana deTeixeira, Alete Paixão2013-11-13T11:49:48Z20050169-7439http://repositorio.ufba.br/ri/handle/ri/13624v.78 n. 1-2Texto completo: acesso restrito.P.96–102Mild variations in organic matrices, which are investigated in this work, are caused by alterations in X-ray Raman scattering. The multivariate approaches, principal component analysis (PCA) and hierarchical cluster analysis (HCA), are applied to visualize these effects. Conventional energy-dispersive X-ray fluorescence equipment is used, where organic compounds produce intense scattering of the X-ray source. X-ray Raman processes, before obtained only for solid samples using synchrotron radiation, are indirectly visualized here through PCA scores and HCA cluster analysis, since they alter the Compton and Rayleigh scattering. As a result, their influences can be seen in known sample characteristics, as those associated with gender and melanin in dog hairs, and the differentiation in coconut varieties. Chemometrics has shown that, despite their complexity, natural samples can be easily classified.Submitted by Edileide Reis (leyde-landy@hotmail.com) on 2013-11-13T11:49:48Z No. of bitstreams: 1 Maria Izabel Maretti Silveira.pdf: 367801 bytes, checksum: f9adca3441e89af449907007e4d1aca8 (MD5)Made available in DSpace on 2013-11-13T11:49:48Z (GMT). No. of bitstreams: 1 Maria Izabel Maretti Silveira.pdf: 367801 bytes, checksum: f9adca3441e89af449907007e4d1aca8 (MD5) Previous issue date: 2005http://dx.doi.org.ez10.periodicos.capes.gov.br/10.1016/j.chemolab.2005.01.001Principal component analysis (PCA)Hierarchical cluster analysis (HCA)Natural sample differentiationX-ray Raman scatter spectrometry (XRSS)Complex organic mixturesX-ray scattering processes and chemometrics for differentiating complex samples using conventional EDXRF equipmentChemometrics and Intelligent Laboratory Systemsinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article10000-01-01info:eu-repo/semantics/openAccessengreponame:Repositório Institucional da UFBAinstname:Universidade Federal da Bahia (UFBA)instacron:UFBAORIGINALMaria Izabel Maretti Silveira.pdfMaria Izabel Maretti Silveira.pdfapplication/pdf367801https://repositorio.ufba.br/bitstream/ri/13624/1/Maria%20Izabel%20Maretti%20Silveira.pdff9adca3441e89af449907007e4d1aca8MD51LICENSElicense.txtlicense.txttext/plain1345https://repositorio.ufba.br/bitstream/ri/13624/2/license.txtff6eaa8b858ea317fded99f125f5fcd0MD52TEXTMaria Izabel Maretti Silveira.pdf.txtMaria Izabel Maretti Silveira.pdf.txtExtracted texttext/plain25640https://repositorio.ufba.br/bitstream/ri/13624/3/Maria%20Izabel%20Maretti%20Silveira.pdf.txtc7bfc5676964bec349b833d7c0b573caMD53ri/136242022-07-05 14:03:08.152oai:repositorio.ufba.br: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Repositório InstitucionalPUBhttp://192.188.11.11:8080/oai/requestopendoar:19322022-07-05T17:03:08Repositório Institucional da UFBA - Universidade Federal da Bahia (UFBA)false
dc.title.pt_BR.fl_str_mv X-ray scattering processes and chemometrics for differentiating complex samples using conventional EDXRF equipment
dc.title.alternative.pt_BR.fl_str_mv Chemometrics and Intelligent Laboratory Systems
title X-ray scattering processes and chemometrics for differentiating complex samples using conventional EDXRF equipment
spellingShingle X-ray scattering processes and chemometrics for differentiating complex samples using conventional EDXRF equipment
Bueno, Maria Izabel Maretti Silveira
Principal component analysis (PCA)
Hierarchical cluster analysis (HCA)
Natural sample differentiation
X-ray Raman scatter spectrometry (XRSS)
Complex organic mixtures
title_short X-ray scattering processes and chemometrics for differentiating complex samples using conventional EDXRF equipment
title_full X-ray scattering processes and chemometrics for differentiating complex samples using conventional EDXRF equipment
title_fullStr X-ray scattering processes and chemometrics for differentiating complex samples using conventional EDXRF equipment
title_full_unstemmed X-ray scattering processes and chemometrics for differentiating complex samples using conventional EDXRF equipment
title_sort X-ray scattering processes and chemometrics for differentiating complex samples using conventional EDXRF equipment
author Bueno, Maria Izabel Maretti Silveira
author_facet Bueno, Maria Izabel Maretti Silveira
Castro, Martha Teresa Pantoja de Oliveira
Souza, Aline Moreira de
Oliveira, Erica Borges Santana de
Teixeira, Alete Paixão
author_role author
author2 Castro, Martha Teresa Pantoja de Oliveira
Souza, Aline Moreira de
Oliveira, Erica Borges Santana de
Teixeira, Alete Paixão
author2_role author
author
author
author
dc.contributor.author.fl_str_mv Bueno, Maria Izabel Maretti Silveira
Castro, Martha Teresa Pantoja de Oliveira
Souza, Aline Moreira de
Oliveira, Erica Borges Santana de
Teixeira, Alete Paixão
Bueno, Maria Izabel Maretti Silveira
Castro, Martha Teresa Pantoja de Oliveira
Souza, Aline Moreira de
Oliveira, Erica Borges Santana de
Teixeira, Alete Paixão
dc.subject.por.fl_str_mv Principal component analysis (PCA)
Hierarchical cluster analysis (HCA)
Natural sample differentiation
X-ray Raman scatter spectrometry (XRSS)
Complex organic mixtures
topic Principal component analysis (PCA)
Hierarchical cluster analysis (HCA)
Natural sample differentiation
X-ray Raman scatter spectrometry (XRSS)
Complex organic mixtures
description Texto completo: acesso restrito.P.96–102
publishDate 2005
dc.date.issued.fl_str_mv 2005
dc.date.accessioned.fl_str_mv 2013-11-13T11:49:48Z
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://repositorio.ufba.br/ri/handle/ri/13624
dc.identifier.issn.none.fl_str_mv 0169-7439
dc.identifier.number.pt_BR.fl_str_mv v.78 n. 1-2
identifier_str_mv 0169-7439
v.78 n. 1-2
url http://repositorio.ufba.br/ri/handle/ri/13624
dc.language.iso.fl_str_mv eng
language eng
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.publisher.none.fl_str_mv http://dx.doi.org.ez10.periodicos.capes.gov.br/10.1016/j.chemolab.2005.01.001
publisher.none.fl_str_mv http://dx.doi.org.ez10.periodicos.capes.gov.br/10.1016/j.chemolab.2005.01.001
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