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Statements

Subject Item
n2:RIV%2F00216275%3A25310%2F14%3A39898281%21RIV15-MSM-25310___
rdf:type
n5:Vysledek skos:Concept
dcterms:description
A method for determination of fatty alcohol ethoxylates in water samples employing reversed phase liquid chromatography has been developed. Fatty alcohol ethoxylates were isolated and preconcentrated using solid phase extraction with the octadecyl silica gel-based sorbent and the mixture of methanol:dichlormethane (9:1 (v/v)) as an elution solvent. After extraction step, isolated alcohol ethoxylates were derivatized using phenyl isothiocyanate reagent with addition of triethylamine as a catalyst. The quantitative parameters, limit of detection and quantification were determined. The mean values of limits of detection and quantification were 20.4 ng mL-1 and 67.9 ng mL-1, respectively. The method has been applied for the analysis of water samples from the rivers Labe and Chrudimka. The determined concentrations of alcohol ethoxylates were in the range of 1-8 ug L-1 with the highest concentrations attributed to nonethoxylated alcohols followed by alcohols with low degree of ethoxylation. A method for determination of fatty alcohol ethoxylates in water samples employing reversed phase liquid chromatography has been developed. Fatty alcohol ethoxylates were isolated and preconcentrated using solid phase extraction with the octadecyl silica gel-based sorbent and the mixture of methanol:dichlormethane (9:1 (v/v)) as an elution solvent. After extraction step, isolated alcohol ethoxylates were derivatized using phenyl isothiocyanate reagent with addition of triethylamine as a catalyst. The quantitative parameters, limit of detection and quantification were determined. The mean values of limits of detection and quantification were 20.4 ng mL-1 and 67.9 ng mL-1, respectively. The method has been applied for the analysis of water samples from the rivers Labe and Chrudimka. The determined concentrations of alcohol ethoxylates were in the range of 1-8 ug L-1 with the highest concentrations attributed to nonethoxylated alcohols followed by alcohols with low degree of ethoxylation.
dcterms:title
Determination of Fatty Alcohol Ethoxylates in the Elbe and Chrudimka Rivers Determination of Fatty Alcohol Ethoxylates in the Elbe and Chrudimka Rivers
skos:prefLabel
Determination of Fatty Alcohol Ethoxylates in the Elbe and Chrudimka Rivers Determination of Fatty Alcohol Ethoxylates in the Elbe and Chrudimka Rivers
skos:notation
RIV/00216275:25310/14:39898281!RIV15-MSM-25310___
n3:aktivita
n7:I n7:S
n3:aktivity
I, S
n3:cisloPeriodika
3
n3:dodaniDat
n13:2015
n3:domaciTvurceVysledku
n6:9294317 n6:2967391 n6:8169314
n3:druhVysledku
n12:J
n3:duvernostUdaju
n16:S
n3:entitaPredkladatele
n10:predkladatel
n3:idSjednocenehoVysledku
10764
n3:idVysledku
RIV/00216275:25310/14:39898281
n3:jazykVysledku
n17:eng
n3:klicovaSlova
water samples; reversed phase liquid chromatography; solid phase extraction; fatty alcohol ethoxylates
n3:klicoveSlovo
n9:reversed%20phase%20liquid%20chromatography n9:fatty%20alcohol%20ethoxylates n9:solid%20phase%20extraction n9:water%20samples
n3:kodStatuVydavatele
CZ - Česká republika
n3:kontrolniKodProRIV
[33060986F80D]
n3:nazevZdroje
Chemické listy
n3:obor
n15:CB
n3:pocetDomacichTvurcuVysledku
3
n3:pocetTvurcuVysledku
4
n3:rokUplatneniVysledku
n13:2014
n3:svazekPeriodika
108
n3:tvurceVysledku
Česla, Petr Vaňková, Nikola Szlauerová, Zuzana Fischer, Jan
n3:wos
000346508500007
s:issn
0009-2770
s:numberOfPages
5
n14:organizacniJednotka
25310