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Statements

Subject Item
n2:RIV%2F00216275%3A25310%2F12%3A39895228%21RIV13-MSM-25310___
rdf:type
n10:Vysledek skos:Concept
rdfs:seeAlso
http://www.sciencedirect.com/science/article/pii/S0039914012004389
dcterms:description
A method for focused ultrasonic extraction of nitroglycerin, triphenyl amine and acetyl tributyl citrate presented in double-base propellant samples following by the gas chromatography/mass spectrometry analysis was developed. A face-centered central composite design of the experiments and response surface modeling was used for optimization of the time, amplitude and sample amount. The dichloromethane was used as the extractant solvent. The optimal extraction conditions with respect to the maximum yield of the lowest abundant compound triphenyl amine were found at the 20 min extraction time, 35% amplitude of ultrasonic waves and 2.5 g of the propellant sample. The results obtained under optimal conditions were compared with the results achieved with validated Soxhlet extraction method, which is typically used for isolation and pre-concentration of compounds from the samples of explosives. The extraction yields for acetyl tributyl citrate using both extraction methods were comparable; however, the yield of ultrasonic extraction of nitroglycerin and triphenyl amine was lower than using Soxhlet extraction. The possible sources of different extraction yields are estimated and discussed. A method for focused ultrasonic extraction of nitroglycerin, triphenyl amine and acetyl tributyl citrate presented in double-base propellant samples following by the gas chromatography/mass spectrometry analysis was developed. A face-centered central composite design of the experiments and response surface modeling was used for optimization of the time, amplitude and sample amount. The dichloromethane was used as the extractant solvent. The optimal extraction conditions with respect to the maximum yield of the lowest abundant compound triphenyl amine were found at the 20 min extraction time, 35% amplitude of ultrasonic waves and 2.5 g of the propellant sample. The results obtained under optimal conditions were compared with the results achieved with validated Soxhlet extraction method, which is typically used for isolation and pre-concentration of compounds from the samples of explosives. The extraction yields for acetyl tributyl citrate using both extraction methods were comparable; however, the yield of ultrasonic extraction of nitroglycerin and triphenyl amine was lower than using Soxhlet extraction. The possible sources of different extraction yields are estimated and discussed.
dcterms:title
Optimization of Focused Ultrasonic Extraction of Propellant Components Determined by Gas Chromatography/Mass Spectrometry Optimization of Focused Ultrasonic Extraction of Propellant Components Determined by Gas Chromatography/Mass Spectrometry
skos:prefLabel
Optimization of Focused Ultrasonic Extraction of Propellant Components Determined by Gas Chromatography/Mass Spectrometry Optimization of Focused Ultrasonic Extraction of Propellant Components Determined by Gas Chromatography/Mass Spectrometry
skos:notation
RIV/00216275:25310/12:39895228!RIV13-MSM-25310___
n10:predkladatel
n13:orjk%3A25310
n3:aktivita
n17:S n17:I
n3:aktivity
I, S
n3:cisloPeriodika
September
n3:dodaniDat
n20:2013
n3:domaciTvurceVysledku
n4:6495001 n4:8169314 n4:8088462 n4:2517019 n4:2804417
n3:druhVysledku
n19:J
n3:duvernostUdaju
n14:S
n3:entitaPredkladatele
n18:predkladatel
n3:idSjednocenehoVysledku
156952
n3:idVysledku
RIV/00216275:25310/12:39895228
n3:jazykVysledku
n7:eng
n3:klicovaSlova
Gas Chromatography/Mass Spectrometry; Soxhlet Extraction; Optimization; Face-Centered Central Composite Design; Focused Ultrasonic Extraction; Explosives
n3:klicoveSlovo
n5:Focused%20Ultrasonic%20Extraction n5:Soxhlet%20Extraction n5:Optimization n5:Gas%20Chromatography%2FMass%20Spectrometry n5:Face-Centered%20Central%20Composite%20Design n5:Explosives
n3:kodStatuVydavatele
NL - Nizozemsko
n3:kontrolniKodProRIV
[06C24B9CEFA5]
n3:nazevZdroje
Talanta
n3:obor
n15:CB
n3:pocetDomacichTvurcuVysledku
5
n3:pocetTvurcuVysledku
5
n3:rokUplatneniVysledku
n20:2012
n3:svazekPeriodika
99
n3:tvurceVysledku
Fryš, Ondřej Bajerová, Petra Adam, Martin Ventura, Karel Česla, Petr
n3:wos
000309785300045
s:issn
0039-9140
s:numberOfPages
7
n16:doi
10.1016/j.talanta.2012.05.058
n11:organizacniJednotka
25310