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Statements

Subject Item
n2:RIV%2F70883521%3A28140%2F13%3A43869776%21RIV14-MSM-28140___
rdf:type
skos:Concept n4:Vysledek
rdfs:seeAlso
http://onlinelibrary.wiley.com/doi/10.1002/jssc.201200967/abstract
dcterms:description
The proposed analytical method allows for simultaneous determination by GC using a programed temperature vaporization injector and a flame ionization detector of the main reaction components (i.e. glycerol, methyl esters, mono-, di-, and triacylglycerols) in the reaction mixture during biodiesel production. The suggested method is convenient for the rapid and simple evaluation of the kinetic data gained during the transesterification reaction and, also partially serves as an indicator of the quality of biodiesel and mainly, as the indicator of the efficiency of the whole production process (i.e. the conversion of triacylglycerols to biodiesel and its time progress). The optimization of chromatographic conditions (e.g. the oven temperature program, injector setting, amount of derivatization reagent, and the derivatization reaction time) was performed. The method has been validated with crude samples of biodiesel made from waste-cooking oils in terms of linearity, precision, accuracy, sensitivity, and limits of detection and quantification. The results confirmed a satisfactory degree of accuracy and repeatability (the mean RSDs were usually below 2%) necessary for the reliable quantitative determination of all components in the considerable concentration range (e.g. 10-1100 μg/mL in case of methyl esters). Compound recoveries ranging from 96 to 104% were obtained. The proposed analytical method allows for simultaneous determination by GC using a programed temperature vaporization injector and a flame ionization detector of the main reaction components (i.e. glycerol, methyl esters, mono-, di-, and triacylglycerols) in the reaction mixture during biodiesel production. The suggested method is convenient for the rapid and simple evaluation of the kinetic data gained during the transesterification reaction and, also partially serves as an indicator of the quality of biodiesel and mainly, as the indicator of the efficiency of the whole production process (i.e. the conversion of triacylglycerols to biodiesel and its time progress). The optimization of chromatographic conditions (e.g. the oven temperature program, injector setting, amount of derivatization reagent, and the derivatization reaction time) was performed. The method has been validated with crude samples of biodiesel made from waste-cooking oils in terms of linearity, precision, accuracy, sensitivity, and limits of detection and quantification. The results confirmed a satisfactory degree of accuracy and repeatability (the mean RSDs were usually below 2%) necessary for the reliable quantitative determination of all components in the considerable concentration range (e.g. 10-1100 μg/mL in case of methyl esters). Compound recoveries ranging from 96 to 104% were obtained.
dcterms:title
Simultaneous determination of main reaction components in the reaction mixture during biodiesel production Simultaneous determination of main reaction components in the reaction mixture during biodiesel production
skos:prefLabel
Simultaneous determination of main reaction components in the reaction mixture during biodiesel production Simultaneous determination of main reaction components in the reaction mixture during biodiesel production
skos:notation
RIV/70883521:28140/13:43869776!RIV14-MSM-28140___
n4:predkladatel
n5:orjk%3A28140
n7:aktivita
n15:P
n7:aktivity
P(ED2.1.00/03.0089)
n7:cisloPeriodika
6
n7:dodaniDat
n12:2014
n7:domaciTvurceVysledku
n11:1864025 n11:3066835 n11:8963967
n7:druhVysledku
n16:J
n7:duvernostUdaju
n10:S
n7:entitaPredkladatele
n20:predkladatel
n7:idSjednocenehoVysledku
105303
n7:idVysledku
RIV/70883521:28140/13:43869776
n7:jazykVysledku
n17:eng
n7:klicovaSlova
Biodiesel||Kinetics||Transesterification||Validation
n7:klicoveSlovo
n13:Biodiesel%7C%7CKinetics%7C%7CTransesterification%7C%7CValidation
n7:kodStatuVydavatele
DE - Spolková republika Německo
n7:kontrolniKodProRIV
[BBEB96B93944]
n7:nazevZdroje
Journal of Separation Science
n7:obor
n9:CB
n7:pocetDomacichTvurcuVysledku
3
n7:pocetTvurcuVysledku
3
n7:projekt
n8:ED2.1.00%2F03.0089
n7:rokUplatneniVysledku
n12:2013
n7:svazekPeriodika
36
n7:tvurceVysledku
Pecha, Jiří Šánek, Lubomír Kolomazník, Karel
n7:wos
000319864900006
s:issn
1615-9306
s:numberOfPages
8
n19:doi
10.1002/jssc.201200967
n21:organizacniJednotka
28140