Počet záznamů: 1

Laser Ablation of FOX-7: Proposed Mechanism of Decomposition

  1. 1.
    0358301 - UFCH-W 2012 RIV US eng J - Článek v odborném periodiku
    Civiš, Martin - Civiš, Svatopluk - Sovová, Kristýna - Dryahina, Kseniya - Španěl, Patrik - Kyncl, M.
    Laser Ablation of FOX-7: Proposed Mechanism of Decomposition.
    Analytical Chemistry. Roč. 83, č. 3 (2011), s. 1069-1077 ISSN 0003-2700
    Grant CEP: GA MPO FT-TA4/124; GA ČR GA202/09/0800
    Výzkumný záměr: CEZ:AV0Z40400503
    Klíčová slova: induced breakdown spectroscopy * tube mass spectroscopy * trace gas analysis
    Kód oboru RIV: CF - Fyzikální chemie a teoretická chemie
    Impakt faktor: 5.856, rok: 2011

    A novel high-energy explosive material, FOX-7 (1,1-diamino-2, 2-dinitroethylene), was 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 (an ArF excimer laser) as the energy source to convert small quantities of a sample into plasma and to induce the emission of its molecular fragments or atoms. SIFT-MS is a novel method for absolute quantification based on chemical ionization using three reagent ions, with the ability to determine concentrations of trace gases and vapors of volatile organic compounds in real time. SIFT-MS was used to study the release of NO, NO2, HCN, HONO, HCHO, CH3CH2OH, and C2H2 after laser ablation of the explosive compound FOX-7 in solid crystalline form. The radiation emitted after excitation was analyzed using a time resolved UV-vis spectrometer with an ICCD detector.
    Trvalý link: http://hdl.handle.net/11104/0196388