A comparative appraisal of Raman band ratioing and chemometric analysis for classification of ancient papyri
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- dc.contributor.author Pereira, Fernando José
- dc.contributor.author López González, Roberto
- dc.contributor.author Ferrer, Nuria
- dc.contributor.author Prieto, Ángel Carmelo
- dc.contributor.author Álvarez, Rafael
- dc.contributor.author Nodar Domínguez, Alberto
- dc.contributor.author Aller, Abundio Javier
- dc.date.accessioned 2024-06-12T06:13:05Z
- dc.date.available 2024-06-12T06:13:05Z
- dc.date.issued 2021
- dc.description.abstract Papyri from past civilizations represent key information sources to understand historical societies and their culture. In general, the most critical information usually derives from the inks rather than the supports. In this work, we combine several analytical tools, including vibrational spectroscopies (FT-IR and Raman) and SEM/EDX spectroscopy, to characterise the inks of various papyri in the Palau-Ribes collection (Barcelona, Spain). The Raman spectra corroborate the presence of soot-based inks as the primary type. We use a five-peak spectral model for the deconvolution of the first-order region of the Raman spectra, which allows us to derive information about the carbon type of the soot-based inks. Further, we propose various Raman band ratios for a thorough evaluation of the graphitization process of carbon and possible classification of the ancient inks. At the same time, we use multivariate analysis, mainly assisted by cluster analysis, principal component analysis, and the Fisher discriminant functions, to enable an excellent alternative way to verify the classification and differentiation of the inks safely as a function of the historical time.
- dc.format.mimetype application/pdf
- dc.identifier.citation Pereira FJ, López R, Ferrer N, Carmelo Prieto A, Alvarez Nogal R, Nodar A, Aller AJ. A comparative appraisal of Raman band ratioing and chemometric analysis for classification of ancient papyri. J Cult Herit. 2021;52:55-64. DOI: 10.1016/j.culher.2021.09.003
- dc.identifier.doi http://dx.doi.org/10.1016/j.culher.2021.09.003
- dc.identifier.issn 1296-2074
- dc.identifier.uri http://hdl.handle.net/10230/60431
- dc.language.iso eng
- dc.relation.ispartof Journal of Cultural Heritage. 2021;52:55-64.
- dc.rights ©2021 The Author(s). Published by Elsevier MassonSAS. This is an openaccess article under the CCBY-NC-ND license ( http://creativecommons.org/licenses/by-nc-nd/4.0/ )
- dc.rights.accessRights info:eu-repo/semantics/openAccess
- dc.rights.uri https://creativecommons.org/licenses/by-nc-nd/4.0/
- dc.subject.keyword Carbon-based inks
- dc.subject.keyword Vibrational spectroscopy
- dc.subject.keyword Multivariate analysis
- dc.subject.keyword SEM/EDXFT-IR
- dc.subject.keyword Raman spectrometry
- dc.title A comparative appraisal of Raman band ratioing and chemometric analysis for classification of ancient papyri
- dc.type info:eu-repo/semantics/article
- dc.type.version info:eu-repo/semantics/publishedVersion