Problems of Analysis by FTIR of Calcium Sulphate-Based Preparatory Layers: The Case of a Group of 16th-Century Portuguese Paintings
Autor(a) principal: | |
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Data de Publicação: | 2014 |
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/10400.26/49277 |
Resumo: | This paper provides a contribution to FTIR analysis of calcium sulphate-based grounds of paintings when a mixture of compounds with different degrees of hydration is present. The study is based on the analysis with that technique, electron microscopy coupled with energy-dispersive X-ray spectrometry and X-ray diffraction of both the grounds of 16th-century Portuguese paintings and reference samples prepared with anhydrite and calcium sulphate dihydrate bound in an animal glue solution. It is shown that the interpretation of the degree of hydration of calcium sulphate ground samples using FTIR cannot be based solely on the study of the hydroxyl bands, as is usual in routine work, but that small deviations of the S–O vibration bands are an important indicator of the presence of anhydrite in the grounds. |
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Problems of Analysis by FTIR of Calcium Sulphate-Based Preparatory Layers: The Case of a Group of 16th-Century Portuguese PaintingsThis paper provides a contribution to FTIR analysis of calcium sulphate-based grounds of paintings when a mixture of compounds with different degrees of hydration is present. The study is based on the analysis with that technique, electron microscopy coupled with energy-dispersive X-ray spectrometry and X-ray diffraction of both the grounds of 16th-century Portuguese paintings and reference samples prepared with anhydrite and calcium sulphate dihydrate bound in an animal glue solution. It is shown that the interpretation of the degree of hydration of calcium sulphate ground samples using FTIR cannot be based solely on the study of the hydroxyl bands, as is usual in routine work, but that small deviations of the S–O vibration bands are an important indicator of the presence of anhydrite in the grounds.Repositório ComumMelo, H. P.Cruz, António JoãoCandeias, A.Mirão, JoséCardoso, A. M.Oliveira, M. J.Valadas, S.2024-01-23T16:03:25Z2014-062024-01-20T23:11:21Z2014-06-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/10400.26/49277engcv-prod-41699110.1111/arcm.120262-s2.0-84900862839WOS:000336458400010metadata only accessinfo: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:RCAAP2024-01-25T15:00:21Zoai:comum.rcaap.pt:10400.26/49277Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-20T01:57:05.832117Repositório 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 |
Problems of Analysis by FTIR of Calcium Sulphate-Based Preparatory Layers: The Case of a Group of 16th-Century Portuguese Paintings |
title |
Problems of Analysis by FTIR of Calcium Sulphate-Based Preparatory Layers: The Case of a Group of 16th-Century Portuguese Paintings |
spellingShingle |
Problems of Analysis by FTIR of Calcium Sulphate-Based Preparatory Layers: The Case of a Group of 16th-Century Portuguese Paintings Melo, H. P. |
title_short |
Problems of Analysis by FTIR of Calcium Sulphate-Based Preparatory Layers: The Case of a Group of 16th-Century Portuguese Paintings |
title_full |
Problems of Analysis by FTIR of Calcium Sulphate-Based Preparatory Layers: The Case of a Group of 16th-Century Portuguese Paintings |
title_fullStr |
Problems of Analysis by FTIR of Calcium Sulphate-Based Preparatory Layers: The Case of a Group of 16th-Century Portuguese Paintings |
title_full_unstemmed |
Problems of Analysis by FTIR of Calcium Sulphate-Based Preparatory Layers: The Case of a Group of 16th-Century Portuguese Paintings |
title_sort |
Problems of Analysis by FTIR of Calcium Sulphate-Based Preparatory Layers: The Case of a Group of 16th-Century Portuguese Paintings |
author |
Melo, H. P. |
author_facet |
Melo, H. P. Cruz, António João Candeias, A. Mirão, José Cardoso, A. M. Oliveira, M. J. Valadas, S. |
author_role |
author |
author2 |
Cruz, António João Candeias, A. Mirão, José Cardoso, A. M. Oliveira, M. J. Valadas, S. |
author2_role |
author author author author author author |
dc.contributor.none.fl_str_mv |
Repositório Comum |
dc.contributor.author.fl_str_mv |
Melo, H. P. Cruz, António João Candeias, A. Mirão, José Cardoso, A. M. Oliveira, M. J. Valadas, S. |
description |
This paper provides a contribution to FTIR analysis of calcium sulphate-based grounds of paintings when a mixture of compounds with different degrees of hydration is present. The study is based on the analysis with that technique, electron microscopy coupled with energy-dispersive X-ray spectrometry and X-ray diffraction of both the grounds of 16th-century Portuguese paintings and reference samples prepared with anhydrite and calcium sulphate dihydrate bound in an animal glue solution. It is shown that the interpretation of the degree of hydration of calcium sulphate ground samples using FTIR cannot be based solely on the study of the hydroxyl bands, as is usual in routine work, but that small deviations of the S–O vibration bands are an important indicator of the presence of anhydrite in the grounds. |
publishDate |
2014 |
dc.date.none.fl_str_mv |
2014-06 2014-06-01T00:00:00Z 2024-01-23T16:03:25Z 2024-01-20T23:11:21Z |
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/10400.26/49277 |
url |
http://hdl.handle.net/10400.26/49277 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
cv-prod-416991 10.1111/arcm.12026 2-s2.0-84900862839 WOS:000336458400010 |
dc.rights.driver.fl_str_mv |
metadata only access info:eu-repo/semantics/openAccess |
rights_invalid_str_mv |
metadata only access |
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 |
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Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
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RCAAP |
institution |
RCAAP |
reponame_str |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
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Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
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Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
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1799137058306916352 |