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Statements

Subject Item
n2:RIV%2F00216305%3A26310%2F09%3APU82049%21RIV10-MSM-26310___
rdf:type
n3:Vysledek skos:Concept
dcterms:description
The composition of humic acids (HAs) isolated from a South Moravian lignite deposit was examined via thermochemolysis and RuO4 oxidation. The combination of thermochemolysis with TMAH and TEAAC shows that fatty acids were mostly in a free form, tightly trapped within the humic acid organic network. Humic acids contain also trapped hydrocarbons. The relative distributions of these compounds confirm their higher plant origin. RuO4 oxidation resulted in a lipophilic fraction containing mainly fatty acids. The hydrophilic fractions released upon RuO4 oxidation comprised mostly aliphatic C-2-C-9 dicarboxylic acids and hydroxy acids related to short methylene bridges, to bridges between aromatic and/or oxygenated moieties such as aliphatic chains of ligneous units. The composition of humic acids (HAs) isolated from a South Moravian lignite deposit was examined via thermochemolysis and RuO4 oxidation. The combination of thermochemolysis with TMAH and TEAAC shows that fatty acids were mostly in a free form, tightly trapped within the humic acid organic network. Humic acids contain also trapped hydrocarbons. The relative distributions of these compounds confirm their higher plant origin. RuO4 oxidation resulted in a lipophilic fraction containing mainly fatty acids. The hydrophilic fractions released upon RuO4 oxidation comprised mostly aliphatic C-2-C-9 dicarboxylic acids and hydroxy acids related to short methylene bridges, to bridges between aromatic and/or oxygenated moieties such as aliphatic chains of ligneous units.
dcterms:title
Molecular compounds generated by ruthenium tetraxide oxidation and preparative off line thermochemolysis of lignite humic acids from South Motravia: Implications for molecular structure Molecular compounds generated by ruthenium tetraxide oxidation and preparative off line thermochemolysis of lignite humic acids from South Motravia: Implications for molecular structure
skos:prefLabel
Molecular compounds generated by ruthenium tetraxide oxidation and preparative off line thermochemolysis of lignite humic acids from South Motravia: Implications for molecular structure Molecular compounds generated by ruthenium tetraxide oxidation and preparative off line thermochemolysis of lignite humic acids from South Motravia: Implications for molecular structure
skos:notation
RIV/00216305:26310/09:PU82049!RIV10-MSM-26310___
n4:aktivita
n16:Z
n4:aktivity
Z(MSM0021630501)
n4:cisloPeriodika
11
n4:dodaniDat
n8:2010
n4:domaciTvurceVysledku
n14:8167893
n4:druhVysledku
n11:J
n4:duvernostUdaju
n18:S
n4:entitaPredkladatele
n12:predkladatel
n4:idSjednocenehoVysledku
327223
n4:idVysledku
RIV/00216305:26310/09:PU82049
n4:jazykVysledku
n10:eng
n4:klicovaSlova
Ruthenium tetroxide oxidation, Thermochemolysis, Humic acids, Lignite
n4:klicoveSlovo
n5:Lignite n5:Ruthenium%20tetroxide%20oxidation n5:Humic%20acids n5:Thermochemolysis
n4:kodStatuVydavatele
GB - Spojené království Velké Británie a Severního Irska
n4:kontrolniKodProRIV
[D3643522A7A2]
n4:nazevZdroje
FUEL
n4:obor
n15:CF
n4:pocetDomacichTvurcuVysledku
1
n4:pocetTvurcuVysledku
3
n4:rokUplatneniVysledku
n8:2009
n4:svazekPeriodika
88
n4:tvurceVysledku
Válková, Dana Grasset, Laurent Amblés, André
n4:zamer
n17:MSM0021630501
s:issn
0016-2361
s:numberOfPages
8
n13:organizacniJednotka
26310