Photoabsorption and photoionization studies of the amino acid proline in the VUV region
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| Autore principale: | |
|---|---|
| Data di pubblicazione: | 2005 |
| Altri autori: | , , , , , |
| Natura: | Article |
| Lingua: | eng |
| Fonte: | Repositório Institucional da UnB |
| Download full: | http://repositorio.unb.br/handle/10482/26470 https://dx.doi.org/10.1590/S0103-97332005000600005 |
Riassunto: | Ionic fragmentation of the sublimated amino acid DL-proline has been studied using time-of-flight mass spectrometry and synchrotron radiation. Total ion yield and mass spectra were recorded in the 13 to 21.6 eV energy range. Partial ion yields have been calculated for the produced fragments and the results analyzed in a comparative way. Mass spectrum of proline previously obtained at 21.21 eV using photons from a discharge lamp (He I), was used as reference in the comparison to the synchrotron radiation based spectra. The loss of the COOH fragment represents the most probable dissociation pathway following the photoionization of DL-proline in the valence region. These are the first results of total and partial ion yields spectra for this molecule in its gas phase in the valence region using time-of-flight spectrometry. |
| _version_ | 1871442292740456448 |
|---|---|
| author | Coutinho, L. H. |
| author2 | Homem, M. G. P. Cavasso-Filho, R. L. Marinho, R. R. T. Lago, A. F. Souza, G. G. B. de Naves de Brito, A. |
| author2_role | author author author author author author |
| author_browse | Cavasso-Filho, R. L. Coutinho, L. H. Homem, M. G. P. Lago, A. F. Marinho, R. R. T. Naves de Brito, A. Souza, G. G. B. de |
| author_facet | Coutinho, L. H. Homem, M. G. P. Cavasso-Filho, R. L. Marinho, R. R. T. Lago, A. F. Souza, G. G. B. de Naves de Brito, A. |
| author_role | author |
| bitstream.checksum.fl_str_mv | c7db76a272e1d879c913e49af58a6e12 |
| bitstream.checksumAlgorithm.fl_str_mv | MD5 |
| bitstream.url.fl_str_mv | http://repositorio2.unb.br/jspui/bitstream/10482/26470/1/a05v354a.pdf |
| collection | Repositório Institucional da UnB |
| dc.contributor.author.fl_str_mv | Coutinho, L. H. Homem, M. G. P. Cavasso-Filho, R. L. Marinho, R. R. T. Lago, A. F. Souza, G. G. B. de Naves de Brito, A. |
| dc.date.accessioned.fl_str_mv | 2017-12-07T04:42:35Z |
| dc.date.available.fl_str_mv | 2017-12-07T04:42:35Z |
| dc.date.issued.fl_str_mv | 2005 |
| dc.identifier.citation.fl_str_mv | Braz. J. Phys.,v.35,n.4a,p.940-944,2005 |
| dc.identifier.doi.pt_BR.fl_str_mv | https://dx.doi.org/10.1590/S0103-97332005000600005 |
| dc.identifier.uri.fl_str_mv | http://repositorio.unb.br/handle/10482/26470 |
| dc.language.iso.fl_str_mv | eng |
| dc.publisher.none.fl_str_mv | Sociedade Brasileira de Física |
| dc.rights.driver.fl_str_mv | info:eu-repo/semantics/openAccess |
| dc.source.none.fl_str_mv | reponame:Repositório Institucional da UnB instname:Universidade de Brasília (UnB) instacron:UNB |
| dc.title.pt_BR.fl_str_mv | Photoabsorption and photoionization studies of the amino acid proline in the VUV region |
| dc.type.driver.fl_str_mv | info:eu-repo/semantics/article |
| dc.type.status.fl_str_mv | info:eu-repo/semantics/publishedVersion |
| description | Ionic fragmentation of the sublimated amino acid DL-proline has been studied using time-of-flight mass spectrometry and synchrotron radiation. Total ion yield and mass spectra were recorded in the 13 to 21.6 eV energy range. Partial ion yields have been calculated for the produced fragments and the results analyzed in a comparative way. Mass spectrum of proline previously obtained at 21.21 eV using photons from a discharge lamp (He I), was used as reference in the comparison to the synchrotron radiation based spectra. The loss of the COOH fragment represents the most probable dissociation pathway following the photoionization of DL-proline in the valence region. These are the first results of total and partial ion yields spectra for this molecule in its gas phase in the valence region using time-of-flight spectrometry. |
| eu_rights_str_mv | openAccess |
| format | article |
| id | UNB_43e90aaeb0be17606fbea0a080ddf51b |
| identifier_str_mv | Braz. J. Phys.,v.35,n.4a,p.940-944,2005 |
| instacron_str | UNB |
| institution | UNB |
| instname_str | Universidade de Brasília (UnB) |
| language | eng |
| network_acronym_str | UNB |
| network_name_str | Repositório Institucional da UnB |
| oai_identifier_str | oai:repositorio.unb.br:10482/26470 |
| publishDate | 2005 |
| publishDateSort | 2005 |
| publisher.none.fl_str_mv | Sociedade Brasileira de Física |
| reponame_str | Repositório Institucional da UnB |
| repository.mail.fl_str_mv | repositorio@unb.br |
| repository.name.fl_str_mv | Repositório Institucional da UnB - Universidade de Brasília (UnB) |
| repository_id_str | |
| spelling | Coutinho, L. H.Homem, M. G. P.Cavasso-Filho, R. L.Marinho, R. R. T.Lago, A. F.Souza, G. G. B. deNaves de Brito, A.2017-12-07T04:42:35Z2017-12-07T04:42:35Z2005Braz. J. Phys.,v.35,n.4a,p.940-944,2005http://repositorio.unb.br/handle/10482/26470https://dx.doi.org/10.1590/S0103-97332005000600005Ionic fragmentation of the sublimated amino acid DL-proline has been studied using time-of-flight mass spectrometry and synchrotron radiation. Total ion yield and mass spectra were recorded in the 13 to 21.6 eV energy range. Partial ion yields have been calculated for the produced fragments and the results analyzed in a comparative way. Mass spectrum of proline previously obtained at 21.21 eV using photons from a discharge lamp (He I), was used as reference in the comparison to the synchrotron radiation based spectra. The loss of the COOH fragment represents the most probable dissociation pathway following the photoionization of DL-proline in the valence region. These are the first results of total and partial ion yields spectra for this molecule in its gas phase in the valence region using time-of-flight spectrometry.Em processamentoSociedade Brasileira de FísicaPhotoabsorption and photoionization studies of the amino acid proline in the VUV regioninfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleinfo:eu-repo/semantics/openAccessengreponame:Repositório Institucional da UnBinstname:Universidade de Brasília (UnB)instacron:UNBORIGINALa05v354a.pdfapplication/pdf171583http://repositorio2.unb.br/jspui/bitstream/10482/26470/1/a05v354a.pdfc7db76a272e1d879c913e49af58a6e12MD51open access10482/264702023-10-11 13:44:08.86open accessoai:repositorio.unb.br:10482/26470Repositório InstitucionalPUBhttps://repositorio.unb.br/oai/requestrepositorio@unb.bropendoar:2023-10-11T16:44:08Repositório Institucional da UnB - Universidade de Brasília (UnB) |
| spellingShingle | Photoabsorption and photoionization studies of the amino acid proline in the VUV region Coutinho, L. H. |
| status_str | publishedVersion |
| title | Photoabsorption and photoionization studies of the amino acid proline in the VUV region |
| title_full | Photoabsorption and photoionization studies of the amino acid proline in the VUV region |
| title_fullStr | Photoabsorption and photoionization studies of the amino acid proline in the VUV region |
| title_full_unstemmed | Photoabsorption and photoionization studies of the amino acid proline in the VUV region |
| title_short | Photoabsorption and photoionization studies of the amino acid proline in the VUV region |
| title_sort | Photoabsorption and photoionization studies of the amino acid proline in the VUV region |
| url | http://repositorio.unb.br/handle/10482/26470 https://dx.doi.org/10.1590/S0103-97332005000600005 |