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Statements

Subject Item
n2:RIV%2F00216275%3A25310%2F12%3A39895291%21RIV13-MSM-25310___
rdf:type
n6:Vysledek skos:Concept
dcterms:description
Analysis of explosives, mainly smokeless powders and explosives mixtures, is an integral part of the production of explosives, fulminating compounds or propellants. Nowadays, chromatographic methods are used for these analyses, for example high performance liquid chromatography with ultraviolet detection (HPLC/UV). Modern methods and classical methods of propellant analysis (titration, gravimetry) require sample preparation to analysis. It means that target analytes have to be isolated from sample for their analysis. Isolation step of propellant analysis includes extraction methods usually. The extraction method is always selected according to the matrix of a sample and kind of a sample. Conventional method for preparation of propellant samples and explosives samples is Soxhlet extraction with dichloromethane or diethyl ether as extraction agent. Substitution of Soxhlet extraction and development of new chromatographic method for analyzing of propellant components were major goals of our work. Pressurized fluid extraction (PFE) is modern and efficient extraction method. The same efficiency or higher extraction efficiency using PFE was observed than using Soxhlet extraction (SE). Time of extraction was shorter using PFE than using Soxhlet extraction (8 hours). Combination of gas chromatography and mass spectrometry (GC/MS) is faster, more sensitive and more accurate method for analyses of propellant components than conventional HPLC/UV. First of all, advantage of GC/MS method is detection of newly tested propellant components, because some of them do not provide of response using ultraviolet detector (for example acetyl tributhyl citrate - gelifying agent in propellants). Secondly, substances can be immediately identified by comparing measured MS spectra with library spectra. Therefore, the GC/MS method fulfills also the qualitative part of smokeless powder analysis (especially the unknown ones). Analysis of explosives, mainly smokeless powders and explosives mixtures, is an integral part of the production of explosives, fulminating compounds or propellants. Nowadays, chromatographic methods are used for these analyses, for example high performance liquid chromatography with ultraviolet detection (HPLC/UV). Modern methods and classical methods of propellant analysis (titration, gravimetry) require sample preparation to analysis. It means that target analytes have to be isolated from sample for their analysis. Isolation step of propellant analysis includes extraction methods usually. The extraction method is always selected according to the matrix of a sample and kind of a sample. Conventional method for preparation of propellant samples and explosives samples is Soxhlet extraction with dichloromethane or diethyl ether as extraction agent. Substitution of Soxhlet extraction and development of new chromatographic method for analyzing of propellant components were major goals of our work. Pressurized fluid extraction (PFE) is modern and efficient extraction method. The same efficiency or higher extraction efficiency using PFE was observed than using Soxhlet extraction (SE). Time of extraction was shorter using PFE than using Soxhlet extraction (8 hours). Combination of gas chromatography and mass spectrometry (GC/MS) is faster, more sensitive and more accurate method for analyses of propellant components than conventional HPLC/UV. First of all, advantage of GC/MS method is detection of newly tested propellant components, because some of them do not provide of response using ultraviolet detector (for example acetyl tributhyl citrate - gelifying agent in propellants). Secondly, substances can be immediately identified by comparing measured MS spectra with library spectra. Therefore, the GC/MS method fulfills also the qualitative part of smokeless powder analysis (especially the unknown ones).
dcterms:title
Application of Pressurized Fluid Extraction for Quantification of Propellant Components Application of Pressurized Fluid Extraction for Quantification of Propellant Components
skos:prefLabel
Application of Pressurized Fluid Extraction for Quantification of Propellant Components Application of Pressurized Fluid Extraction for Quantification of Propellant Components
skos:notation
RIV/00216275:25310/12:39895291!RIV13-MSM-25310___
n6:predkladatel
n12:orjk%3A25310
n3:aktivita
n10:S
n3:aktivity
S
n3:dodaniDat
n17:2013
n3:domaciTvurceVysledku
n9:6495001 n9:3799794 n9:8088462 n9:2517019
n3:druhVysledku
n14:D
n3:duvernostUdaju
n21:S
n3:entitaPredkladatele
n18:predkladatel
n3:idSjednocenehoVysledku
123371
n3:idVysledku
RIV/00216275:25310/12:39895291
n3:jazykVysledku
n13:eng
n3:klicovaSlova
GC/MS.; Gas Chromatography/Mass Spectrometry; Pressurized Fluid Extraction; Analyses; Propellant
n3:klicoveSlovo
n11:GC%2FMS. n11:Propellant n11:Gas%20Chromatography%2FMass%20Spectrometry n11:Analyses n11:Pressurized%20Fluid%20Extraction
n3:kontrolniKodProRIV
[B60B8CE2A70F]
n3:mistoKonaniAkce
Pardubice
n3:mistoVydani
Pardubice
n3:nazevZdroje
Proceedings of the 15th Seminar on New Trends in Research of Energetic Materials
n3:obor
n4:CB
n3:pocetDomacichTvurcuVysledku
4
n3:pocetTvurcuVysledku
4
n3:rokUplatneniVysledku
n17:2012
n3:tvurceVysledku
Bajerová, Petra Fryš, Ondřej Ventura, Karel Eisner, Aleš
n3:typAkce
n19:WRD
n3:zahajeniAkce
2012-04-18+02:00
s:numberOfPages
8
n16:hasPublisher
Univerzita Pardubice
n15:isbn
978-80-7395-480-2
n20:organizacniJednotka
25310