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Differentiating present-day from ancient bones by vibrational spectroscopy upon acetic acid treatment

2023Journal article Open access
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dc.contributor.authorBrandão, A.L.C.
dc.contributor.authorBatista de Carvalho, L.A.E.
dc.contributor.authorGonçalves, D.
dc.contributor.authorPiga, G.
dc.contributor.authorCunha, E.
dc.contributor.authorMarques, M.P.M.
dc.date.accessioned2023-10-20T16:39:27Z
dc.date.available2023-10-20T16:39:27Z
dc.date.issued2023
dc.description.abstractAcetic acid treatment for an accurate differentiation between ancient and recent human bones was assessed using Raman and FTIR-ATR spectroscopies. Each set of skeletal samples was analysed by these techniques, prior and after chemical washing, in order to determine the variations in bone´s chemical composition and crystallinity. Bone samples were collected from several independent sources: recent bones burned under controlled experimental conditions or cremated, and archaeological (XVII century and Iron Age). The effect of acetic acid, expected to impact mostly on carbonates, was clearly evidenced in the spectra of all samples, particularly in FTIR-ATR, mainly through the bands typical of A- and B-carbonates. Furthermore, as seen for crematoria and archaeological samples, acetic acid was found to remove contaminants such as calcium hydroxide. Overall, acetic acid treatment can be an effective method for removing carbonates (exogenous but possibly also endogenous) and external contaminants from bone. However, these effects are dependent on the skeletal conditions (e.g. post-mortem interval and burning settings). In addition, this chemical washing was shown to be insufficient for an unequivocal discrimination between recent and archaeological skeletal remains. Based on the measured IR indexes, only cremated bones could be clearly distinguished.
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.citationBrandão, A. L. C., Batista de Carvalho, L. A. E., Gonçalves, D., Piga, G., Cunha, E., & Marques, M. P. M. (2023). Differentiating present-day from ancient bones by vibrational spectroscopy upon acetic acid treatment. Forensic science international, 347, 111690pt_PT
dc.identifier.doi10.1016/j.forsciint.2023.111690pt_PT
dc.identifier.urihttp://hdl.handle.net/10400.26/47377
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherElsevierpt_PT
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/4.0/pt_PT
dc.subjectFTIR-ATR spectroscopypt_PT
dc.subjectRaman spectroscopypt_PT
dc.subjectPost-mortem intervalpt_PT
dc.subjectControlled burningpt_PT
dc.subjectCremationpt_PT
dc.subjectCarbonate contentpt_PT
dc.titleDifferentiating present-day from ancient bones by vibrational spectroscopy upon acetic acid treatmentpt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.citation.startPage111690pt_PT
oaire.citation.titleForensic Science Internationalpt_PT
oaire.citation.volume347pt_PT
person.familyNameCunha
person.givenNameEugénia
person.identifierhttps://scholar.google.pt/citations?user=HSGHLA0AAAAJ&hl=en
person.identifier.ciencia-idE717-5464-E13B
person.identifier.orcid0000-0003-2998-371X
person.identifier.scopus-author-id190305008042
rcaap.rightsopenAccesspt_PT
rcaap.typearticlept_PT
relation.isAuthorOfPublication32c59c7d-e7f2-4023-91a0-677db952e161
relation.isAuthorOfPublication.latestForDiscovery32c59c7d-e7f2-4023-91a0-677db952e161

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