IDENTIFICAÇÃO E PROVENIÊNCIA DE FRAGMENTOS METÁLICOS ENCONTRADOS EM CRÂNIO HUMANO VIA ESPECTROSCOPIA DE RAIOS-X POR ENERGIA DISPERSIVA (EDX)

Authors

  • Samara Testoni Universidade Federal do Rio Grande do Sul https://orcid.org/0000-0003-2049-037X
  • Marcely Echeverria Oliveira Universidade Federal do Paraná – centro Politécnico
  • Wladimir Ribeiro Duarte Instituto Geral de Perícias (IGP) – Pelotas/RS
  • Lucas da Silva Rodrigues Universidade Federal de Pelotas – campus Anglo
  • Guilherme Kurz Maron Universidade Federal de Pelotas – campus Anglo
  • Neftali Lenin Villarreal Carreño Universidade Federal de Pelotas – campus Anglo
  • Rafael Scorsatto Ortiz Departamento de Polícia Federal – Setor Técnico-Científico
  • Claudio Martin Pereira de Pereira Universidade Federal de Pelotas – Instituto de Química e Geociências

DOI:

https://doi.org/10.36524/ric.v9i3.2211

Keywords:

Ciências Forenses, projéteis, metais pesados, chumbo, análise elementar

Abstract

The analysis of metallic fragments in perforated bones can determine whether or not there was manipulation of a firearm projectile (FAP). The characteristics of the projectiles, such as chemical composition, substances and residues generated after firing, can contribute to the elucidation of several criminal cases. The objective of this work was to investigate the chemical composition of metallic fragments present in human skull perforations, and to relate them or not to a firearm projectile. For this investigation, energy dispersive X-ray spectroscopy (EDX) analysis was used to obtain the semi-quantitative elemental composition of the analyzed material. The chemical composition of metallic fragments found in cranial perforations was similar to that commonly found in FAP, which have Pb, Cu, Zn and Fe as major elements. EDX analysis is a convenient technique (cost-effective), relatively fast and non-destructive, proving to be efficient in the discrimination of metallic fragments present in the holes of the human skull, being possible to relate them with gunshot residues.

IDENTIFICAÇÃO E PROVENIÊNCIA DE FRAGMENTOS METÁLICOS ENCONTRADOS EM CRÂNIO HUMANO VIA ESPECTROSCOPIA DE RAIOS -X POR ENERGIA DISPERSIVA (EDX)

Published

01-10-2023

Issue

Section

Ciências Exatas e da Terra

How to Cite

IDENTIFICAÇÃO E PROVENIÊNCIA DE FRAGMENTOS METÁLICOS ENCONTRADOS EM CRÂNIO HUMANO VIA ESPECTROSCOPIA DE RAIOS-X POR ENERGIA DISPERSIVA (EDX). (2023). Revista Ifes Ciência , 9(3), 01-11. https://doi.org/10.36524/ric.v9i3.2211

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