Mass spectrometric analysis of epimeric 3α/3β functionalized steroids.
Autor(a) principal: | |
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Data de Publicação: | 2007 |
Outros Autores: | , , , , |
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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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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1799130196652064768 |