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Anal Chem

Title:		Laser ablation of FOX-7: proposed mechanism of decomposition
Author(s):		Civis M; Civis S; Sovova K; Dryahina K; Spanel P; Kyncl M;
Address:		"J. Heyrovsky Institute of Physical Chemistry, Czech Academy of Sciences, Prague, Czech Republic. civis@jh-inst.cas.cz"
Journal Title:		Anal Chem
Year:		2011
Volume:		20110112
Issue:		3
Page Number:		1069 - 1077
DOI:		10.1021/ac1028769
ISSN/ISBN:		1520-6882 (Electronic) 0003-2700 (Linking)
Abstract:		"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, NO(2), HCN, HONO, HCHO, CH(3)CH(2)OH, and C(2)H(2) 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. The electronic bands of CN (388 nm), OH (308.4 nm), and NO (237.1 nm) radicals and the atomic lines of C, N, and H were identified"
Keywords:
Notes:		"PubMed-not-MEDLINECivis, Martin Civis, Svatopluk Sovova, Kristyna Dryahina, Kseniya Spanel, Patrik Kyncl, Martin eng 2011/01/14 Anal Chem. 2011 Feb 1; 83(3):1069-77. doi: 10.1021/ac1028769. Epub 2011 Jan 12"