Mass spectrometric analysis of epimeric 3α/3β functionalized steroids.

Detalhes bibliográficos
Autor(a) principal: Ramos, Susana Sofia
Data de Publicação: 2007
Outros Autores: Ramalho, Luís, Costa, Mafalda, Teixeira, Adriano, Almeida, Paulo, Costa, Maria do Céu
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
Texto Completo: http://hdl.handle.net/10400.9/695
Resumo: Tandem mass spectrometry (MS/MS) using an atmospheric pressure chemical ionization (APCI) source in positive mode (+) reveals different intensity ratios of two fragment peaks of the epimeric cholestane derivatives synthesized from 3{460}- or 3β-cholestanol. The investigation of the fragmentation pattern obtained from their full scan and/or collision induced dissociation (CID) spectra in the case of the cholestane skeleton together with the respective electronic ionization (EI) spectra supports a distinction of the epimers.
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spelling Mass spectrometric analysis of epimeric 3α/3β functionalized steroids.APCIEITandem MSEpimer discriminationTandem mass spectrometry (MS/MS) using an atmospheric pressure chemical ionization (APCI) source in positive mode (+) reveals different intensity ratios of two fragment peaks of the epimeric cholestane derivatives synthesized from 3{460}- or 3β-cholestanol. The investigation of the fragmentation pattern obtained from their full scan and/or collision induced dissociation (CID) spectra in the case of the cholestane skeleton together with the respective electronic ionization (EI) spectra supports a distinction of the epimers.Repositório do LNEGRamos, Susana SofiaRamalho, LuísCosta, MafaldaTeixeira, AdrianoAlmeida, PauloCosta, Maria do Céu2010-06-22T14:29:45Z2007-01-01T00:00:00Z2007-01-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/10400.9/695engRamos, Susana Sofia; Ramalho, Luís; Costa, Mafalda; Teixeira, Adriano; Costa, Maria do Céu; Almeida, Paulo. Mass spectrometric analysis of epimeric 3α/3β functionalized steroids. In: ARKIVOC, 2007, vol. xiv, p. 163-171info:eu-repo/semantics/openAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2022-09-06T12:24:55Zoai:repositorio.lneg.pt:10400.9/695Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T15:33:33.721621Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãofalse
dc.title.none.fl_str_mv Mass spectrometric analysis of epimeric 3α/3β functionalized steroids.
title Mass spectrometric analysis of epimeric 3α/3β functionalized steroids.
spellingShingle Mass spectrometric analysis of epimeric 3α/3β functionalized steroids.
Ramos, Susana Sofia
APCI
EI
Tandem MS
Epimer discrimination
title_short Mass spectrometric analysis of epimeric 3α/3β functionalized steroids.
title_full Mass spectrometric analysis of epimeric 3α/3β functionalized steroids.
title_fullStr Mass spectrometric analysis of epimeric 3α/3β functionalized steroids.
title_full_unstemmed Mass spectrometric analysis of epimeric 3α/3β functionalized steroids.
title_sort Mass spectrometric analysis of epimeric 3α/3β functionalized steroids.
author Ramos, Susana Sofia
author_facet Ramos, Susana Sofia
Ramalho, Luís
Costa, Mafalda
Teixeira, Adriano
Almeida, Paulo
Costa, Maria do Céu
author_role author
author2 Ramalho, Luís
Costa, Mafalda
Teixeira, Adriano
Almeida, Paulo
Costa, Maria do Céu
author2_role author
author
author
author
author
dc.contributor.none.fl_str_mv Repositório do LNEG
dc.contributor.author.fl_str_mv Ramos, Susana Sofia
Ramalho, Luís
Costa, Mafalda
Teixeira, Adriano
Almeida, Paulo
Costa, Maria do Céu
dc.subject.por.fl_str_mv APCI
EI
Tandem MS
Epimer discrimination
topic APCI
EI
Tandem MS
Epimer discrimination
description Tandem mass spectrometry (MS/MS) using an atmospheric pressure chemical ionization (APCI) source in positive mode (+) reveals different intensity ratios of two fragment peaks of the epimeric cholestane derivatives synthesized from 3{460}- or 3β-cholestanol. The investigation of the fragmentation pattern obtained from their full scan and/or collision induced dissociation (CID) spectra in the case of the cholestane skeleton together with the respective electronic ionization (EI) spectra supports a distinction of the epimers.
publishDate 2007
dc.date.none.fl_str_mv 2007-01-01T00:00:00Z
2007-01-01T00:00:00Z
2010-06-22T14:29:45Z
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://hdl.handle.net/10400.9/695
url http://hdl.handle.net/10400.9/695
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv Ramos, Susana Sofia; Ramalho, Luís; Costa, Mafalda; Teixeira, Adriano; Costa, Maria do Céu; Almeida, Paulo. Mass spectrometric analysis of epimeric 3α/3β functionalized steroids. In: ARKIVOC, 2007, vol. xiv, p. 163-171
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.source.none.fl_str_mv reponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
instacron:RCAAP
instname_str Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
instacron_str RCAAP
institution RCAAP
reponame_str Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
collection Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
repository.name.fl_str_mv Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
repository.mail.fl_str_mv
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