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When hair is the only biological specimen available: Analysis of a mummified scalp fragment

2023-06-07Conference object Open access
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dc.contributor.authorMargalho, Cláudia
dc.contributor.authorFranco, João Miguel
dc.contributor.authorBarroso, Mário
dc.date.accessioned2023-12-06T16:37:19Z
dc.date.available2023-12-06T16:37:19Z
dc.date.issued2023-06-07
dc.descriptionComunicação Oral realizada, 27th Meeting of the Society of Hair Testing (SOHT), Lisboa (Portugal) 7-9 June 2023pt_PT
dc.description.abstractHair testing provides useful and important information in forensic scenarios, as it complements data obtained from other biological specimens. Hair has been used for years to document exposure to drugs in a number of settings, for instance workplace drug testing, drug facilitated crimes and post-mortem toxicology. The authors present a case of decomposed human remains (unidentified) which appeared in a vacant house. A handmade pipe, a mouthpiece, cigarettes and syringes, indicating the consumption of drugs of abuse were found near the body. There was information that the deceased was addicted to drugs, but the specific substances were unknown. No pathological history and/or usual medication, were known, and the cause of death was ignored. The only biological sample available for toxicological analysis was mummified scalp with some hairs. The non-biological samples were analysed by GC-MS, and the following substances were detected: syringe A – cocaine, heroin, phenacetin, paracetamol; syringe B - cocaine, phenacetine, caffeine, nicotine, noscapine; mouthpiece – cocaine; handmade pipe - cocaine and metabolites, phenacetin and metabolites, paracetamol; cigarette A – nicotine and cotinine; cigarette B – nicotine, cotinine, phenacetin, caffeine. These results oriented hair testing to opiates and cocaine, which were analysed by GC-MS after appropriate extraction and clean- up. Hair was positive for cocaine (57 ng/mg), benzoylecgonine (17 ng/mg), norcocaine (2.20 ng/mg), cocaethylene (not quantitated), 6-acethylmorphine (4.65 ng/mg), morphine (4.52 ng/mg), codeine (0.83 ng/mg) and tramadol (0.87 ng/mg). The findings in hair are compatible with those in the paraphernalia; as such, it could be concluded that those objects belonged to the deceased. Hair analysis suggested that this death could be related to the consumption of heroin and cocaine.pt_PT
dc.description.versionN/Apt_PT
dc.identifier.urihttp://hdl.handle.net/10400.26/48426
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.subjectHairpt_PT
dc.subjectMummified scalppt_PT
dc.subjectDrugs of abusept_PT
dc.subjectParaphernaliapt_PT
dc.subjectGC-MS-EIpt_PT
dc.titleWhen hair is the only biological specimen available: Analysis of a mummified scalp fragmentpt_PT
dc.typeconference object
dspace.entity.typePublication
oaire.citation.conferencePlaceLisboapt_PT
oaire.citation.title27th Meeting of the Society of Hair Testing (SOHT)pt_PT
person.familyNameMargalho
person.familyNameFranco
person.familyNameBarroso
person.givenNameCláudia
person.givenNameJoão
person.givenNameMário
person.identifier.ciencia-idA211-521D-90CA
person.identifier.ciencia-id5110-F476-ECCC
person.identifier.orcid0000-0003-1661-0367
person.identifier.orcid0000-0002-3268-3841
person.identifier.orcid0000-0001-8848-2734
person.identifier.ridKII-2916-2024
person.identifier.scopus-author-id8655072100
person.identifier.scopus-author-id35329243100
rcaap.rightsopenAccesspt_PT
rcaap.typeconferenceObjectpt_PT
relation.isAuthorOfPublication267f4998-7eea-4d9f-9216-8adcd52fbe1f
relation.isAuthorOfPublication045c4125-1313-445f-b05f-b7f204886052
relation.isAuthorOfPublication294b555e-48c4-4013-b981-b8917400c56c
relation.isAuthorOfPublication.latestForDiscovery294b555e-48c4-4013-b981-b8917400c56c

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