Počet záznamů: 1

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

  1. 1.
    0342621 - UFCH-W 2011 RIV GB eng J - Článek v odborném periodiku
    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
    Grant CEP: GA AV ČR IAAX00100903; GA ČR GA202/09/0800
    Výzkumný záměr: CEZ:AV0Z40400503
    Klíčová slova: hexogen * UV-vis spectrometry * mass spectrometry
    Kód oboru RIV: CF - Fyzikální chemie a teoretická chemie
    Impakt faktor: 3.913, rok: 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.
    Trvalý link: http://hdl.handle.net/11104/0185312