RT info:eu-repo/semantics/article
T1 Progressing the analysis of Improvised Explosive Devices: Comparative study for trace detection of explosive residues in handprints by Raman spectroscopy and liquid chromatography
A1 Zapata Arráez, Félix
A1 Fernández de la Ossa, María de los Ángeles
A1 Gilchrist, E.
A1 Barron, L
A1 García Ruiz, Carmen
K1 Improvised explosive devices (IEDs)
K1 handprints
K1 black powder
K1 dynamite
K1 Raman spectroscopy
K1 liquid chromatography
K1 Química
K1 Chemistry
AB Concerning the dreadful global threat of terrorist attacks, the detection of explosive residues in biological traces and marks is a current need in both forensics and homeland security. This study examines the potential of Raman microscopy in comparison to liquid chromatography (ion chromatography (IC) and reversed-phase high performance liquid chromatography (RP-HPLC)) to detect, identify and quantify residues in human handmarks of explosives and energetic salts commonly used to manufacture Improvised Explosive Devices (IEDs) including dynamite, ammonium nitrate, single- and double-smokeless gunpowders and black powder. Dynamite, ammonium nitrate and black powder were detected through the identification of the energetic salts by Raman spectroscopy, their respective anions by IC, and organic components by RP-HPLC. Smokeless gunpowders were not detected, either by Raman spectroscopy or the two liquid chromatography techniques. Several aspects of handprint collection, sample treatment and a critical comparison of the identification of compounds by both techniques are discussed. Raman microscopy and liquid chromatography were shown to be complementary to one another offering more comprehensive information for trace explosives analysis.
SN 0039-9140
YR 2016
FD 2016-08-02
LK http://hdl.handle.net/10017/40713
UL http://hdl.handle.net/10017/40713
LA eng
DS MINDS@UW
RD 01-may-2024