Identification of Absorption Spectrum for IED Precursors Using Laser Photoacoustic Spectroscopy

Among the many commonly encountered hazards, improvised explosive devices (IEDs) remain the primary threat to military and civilian personnel due to the ease of their production and the widespread availability of their raw materials and precursors. Identifying traces of potential precursors is the f...

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Main Authors: Ana-Maria Bratu, Mioara Petrus, Cristina Popa
Format: Article
Language:English
Published: MDPI AG 2023-10-01
Series:Molecules
Subjects:
Online Access:https://www.mdpi.com/1420-3049/28/19/6908
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author Ana-Maria Bratu
Mioara Petrus
Cristina Popa
author_facet Ana-Maria Bratu
Mioara Petrus
Cristina Popa
author_sort Ana-Maria Bratu
collection DOAJ
description Among the many commonly encountered hazards, improvised explosive devices (IEDs) remain the primary threat to military and civilian personnel due to the ease of their production and the widespread availability of their raw materials and precursors. Identifying traces of potential precursors is the first step in developing appropriate control measures. An interesting approach is to identify the precursors that are released around the site as they are handled and transformed into the final IEDs. CO<sub>2</sub> laser photoacoustic spectroscopy can offer the spectral characterization of a number of explosives-related compounds without sample preparation. Benzene, toluene, acetone, and ethylene glycol absorption spectra were determined in the IR region between 9.2 and 10.8 µm. Each substance emitted a unique photoacoustic response corresponding to its chemical composition that could be further used to identify the explosive material.
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spelling doaj.art-102fb41272444fcb8e3c7e9f9554f6ff2023-11-19T14:47:12ZengMDPI AGMolecules1420-30492023-10-012819690810.3390/molecules28196908Identification of Absorption Spectrum for IED Precursors Using Laser Photoacoustic SpectroscopyAna-Maria Bratu0Mioara Petrus1Cristina Popa2National Institute for Laser, Plasma and Radiation Physics, 409 Atomistilor St., P.O. Box MG-36, Magurele, 077125 Bucharest, RomaniaNational Institute for Laser, Plasma and Radiation Physics, 409 Atomistilor St., P.O. Box MG-36, Magurele, 077125 Bucharest, RomaniaNational Institute for Laser, Plasma and Radiation Physics, 409 Atomistilor St., P.O. Box MG-36, Magurele, 077125 Bucharest, RomaniaAmong the many commonly encountered hazards, improvised explosive devices (IEDs) remain the primary threat to military and civilian personnel due to the ease of their production and the widespread availability of their raw materials and precursors. Identifying traces of potential precursors is the first step in developing appropriate control measures. An interesting approach is to identify the precursors that are released around the site as they are handled and transformed into the final IEDs. CO<sub>2</sub> laser photoacoustic spectroscopy can offer the spectral characterization of a number of explosives-related compounds without sample preparation. Benzene, toluene, acetone, and ethylene glycol absorption spectra were determined in the IR region between 9.2 and 10.8 µm. Each substance emitted a unique photoacoustic response corresponding to its chemical composition that could be further used to identify the explosive material.https://www.mdpi.com/1420-3049/28/19/6908CO<sub>2</sub> laserphotoacoustic spectroscopyexplosives-related molecules identification
spellingShingle Ana-Maria Bratu
Mioara Petrus
Cristina Popa
Identification of Absorption Spectrum for IED Precursors Using Laser Photoacoustic Spectroscopy
Molecules
CO<sub>2</sub> laser
photoacoustic spectroscopy
explosives-related molecules identification
title Identification of Absorption Spectrum for IED Precursors Using Laser Photoacoustic Spectroscopy
title_full Identification of Absorption Spectrum for IED Precursors Using Laser Photoacoustic Spectroscopy
title_fullStr Identification of Absorption Spectrum for IED Precursors Using Laser Photoacoustic Spectroscopy
title_full_unstemmed Identification of Absorption Spectrum for IED Precursors Using Laser Photoacoustic Spectroscopy
title_short Identification of Absorption Spectrum for IED Precursors Using Laser Photoacoustic Spectroscopy
title_sort identification of absorption spectrum for ied precursors using laser photoacoustic spectroscopy
topic CO<sub>2</sub> laser
photoacoustic spectroscopy
explosives-related molecules identification
url https://www.mdpi.com/1420-3049/28/19/6908
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