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Laser Ablation of FOX-7: Proposed Mechanism of Decomposition

SYSNO ASEP	0358301
Document Type	J - Journal Article
R&D Document Type	Journal Article
Subsidiary J	Článek ve WOS
Title	Laser Ablation of FOX-7: Proposed Mechanism of Decomposition
Author(s)	Civiš, Martin (UFCH-W) Civiš, Svatopluk (UFCH-W)_{RID, ORCID, SAI} Sovová, Kristýna (UFCH-W)_RID Dryahina, Kseniya (UFCH-W)_{RID, ORCID} Španěl, Patrik (UFCH-W)_{RID, ORCID} Kyncl, M. (CZ)
Source Title	Analytical Chemistry. - : American Chemical Society - ISSN 0003-2700 Roč. 83, č. 3 (2011), s. 1069-1077
Number of pages	9 s.
Language	eng - English
Country	US - United States
Keywords	induced breakdown spectroscopy ; tube mass spectroscopy ; trace gas analysis
Subject RIV	CF - Physical ; Theoretical Chemistry
R&D Projects	FT-TA4/124 GA MPO - Ministry of Industry and Trade (MPO)
	GA202/09/0800 GA ČR - Czech Science Foundation (CSF)
CEZ	AV0Z40400503 - UFCH-W (2005-2011)
UT WOS	000286689600062
DOI	10.1021/ac1028769
Annotation	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.
Workplace	J. Heyrovsky Institute of Physical Chemistry
Contact	Michaela Knapová, michaela.knapova@jh-inst.cas.cz, Tel.: 266 053 196
Year of Publishing	2012

Number of the records: 1