title: Identification of ANFO: Use of luminescent taggants in post-blast residues.
abstract: This work describes the incorporation of luminescent taggants in cartridges of ammonium nitrate-fuel oil (ANFO) to allow easy identification and collection of post-blast residues. Metal-Organic Frameworks taggants proved to be appropriate for explosive marking when ANFO proportions were above 3.0wt.%. Lanthanide-based light emission enabled in situ retrieval of explosive residues as well as chemical identification, allowing the creation of a coding system using Energy Dispersive Spectroscopy (EDS). The proposed method will accelerate laboratory analysis and support forensic investigations, connecting evidence to suspects and/or to the explosive origin.
authors.affiliation: LIMA, Chemistry Institute, University of Brasília-UnB, P.O. Box 04478, 70904-970 Brasília, Brazil.
authors.forename: F G M
authors.initials: FGM
authors.lastname: Mauricio
authors.affiliation: National Institute of Criminalistics, Brazilian Federal Police, SAIS Quadra 07 Lote 23, 70610-200 Brasília, Brazil.
authors.forename: A Z
authors.initials: AZ
authors.lastname: Pralon
authors.affiliation: National Institute of Criminalistics, Brazilian Federal Police, SAIS Quadra 07 Lote 23, 70610-200 Brasília, Brazil.
authors.forename: M
authors.initials: M
authors.lastname: Talhavini
authors.affiliation: LIMA, Chemistry Institute, University of Brasília-UnB, P.O. Box 04478, 70904-970 Brasília, Brazil.
authors.forename: M O
authors.initials: MO
authors.lastname: Rodrigues
authors.affiliation: LIMA, Chemistry Institute, University of Brasília-UnB, P.O. Box 04478, 70904-970 Brasília, Brazil; PGMTR-CCEN, Federal University of Pernambuco-UFPE, Av. Prof. Luiz Freire, S/N, Cidade Universitária, 5070-540 Recife, Brazil. Electronic address: ingrid@ufpe.br.
authors.forename: I T
authors.initials: IT
authors.lastname: Weber
keywords: Explosive identification; Explosive marker; Explosive taggant; Luminescent taggant; Metal-Organic Frameworks; Post-blast