A study of the composition of the products of laser-induced breakdown of hexogen, octogen, pentrite and trinitrotoluene using selected ion flow tube mass spectrometry and UV-Vis spectrometry

0342621 - ÚFCH JH 2011 RIV GB eng J - Journal Article
Sovová, Kristýna - Dryahina, Kseniya - Španěl, Patrik - Kyncl, M. - Civiš, Svatopluk
A study of the composition of the products of laser-induced breakdown of hexogen, octogen, pentrite and trinitrotoluene using selected ion flow tube mass spectrometry and UV-Vis spectrometry.
Analyst. Roč. 135, č. 5 (2010), s. 1106-1114. ISSN 0003-2654. E-ISSN 1364-5528
R&D Projects: GA AV ČR IAAX00100903; GA ČR GA202/09/0800
Institutional research plan: CEZ:AV0Z40400503
Keywords : hexogen * UV-vis spectrometry * mass spectrometry
Subject RIV: CF - Physical ; Theoretical Chemistry
Impact factor: 3.913, year: 2010

Four types of explosives were studied using a combination of Laser Induced Breakdown Spectroscopy (LIBS) and Selected Ion Flow Tube Mass Spectrometry (SIFT-MS). The LIBS technique uses short laser pulses (ArF excimer laser) as the energy source to convert small amounts samples into plasma and to produce the emission from their molecular fragments or atoms. SIFT-MS is a novel method for absolute quantification based on chemical ionization using three precursor ions, with the capability to determine concentrations of trace gases and vapours of volatile organic compounds in real time. This is the first time that SIFT-MS has been used to study the release of NO, NO2, HCN, HNO3, HONO, HCHO and C2H2 after a laser-induced breakdown of pure explosive compounds HMX (1,3,5,7-tetranitro-1,3,5,7-tetraazacyclo-octane), RDX (1,3,5-trinitro-2-oxo-1,3,5-triazacyclo-hexane), PETN (pentaerithrityl-tetranitrate) and TNT (2,4,6-trinitrotoluene) in solid form.
Permanent Link: http://hdl.handle.net/11104/0185312