Raman hyperspectral imaging in conjunction with independent component analysis as a forensic tool for explosive analysis: The case of an ATM explosion

Autor(es)

Almeida, Mariana Ramos ; Lima Logrado, Lucio Paulo ; Zacca, Jorge Jardim ; Correa, Deleon Nascimento ; Poppi, Ronei Jesus

• Tipo de documento: Artigo Científico
• Fonte: Talanta; v. 174, p. 628-632, NOV 1 2017.
• Citações Web of Science: 10

Resumo

In this work, Raman hyperspectral imaging, in conjunction with independent component analysis, was employed as an analytical methodology to detect an ammonium nitrate fuel oil (ANFO) explosive in banknotes after an ATM explosion experiment. The proposed methodology allows for the identification of the ANFO explosive without sample preparation or destroying the sample, at quantities as small as 70 pg cm(-2). The explosive was identified following ICA data decomposition by the characteristic nitrate band at 1044 cm(-1). The use of Raman hyperspectral imaging and independent component analysis shows great potential for identifying forensic samples by providing chemical and spatial information. (AU)

• Processo FAPESP: 08/57805-2 - Instituto de Bioanalítica
• Beneficiário: Lauro Tatsuo Kubota
• Modalidade de apoio: Auxílio à Pesquisa - Temático