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Statements

Subject Item
n2:RIV%2F00216275%3A25310%2F14%3A39898266%21RIV15-MSM-25310___
rdf:type
skos:Concept n16:Vysledek
dcterms:description
In this contribution, a new carbon paste ion-selective electrode was introduced for ion-pair formation-based potentiometric titrations of anionic surfactants. In the electrode, an extract of hexadecylpyridinium dodecylsulfate in o-nitrophenyl octylether was used as both the binder and the electroactive ion-exchanger. Concerning titrants, three cationic compounds were examined: hexadecyl-pyridinium chloride (CPC), (diisobutylphenoxyethoxyethyl)-dimethyl-benzyl- ammonium chloride (Hyamine 1622, HYA) and 1,3-didecyl-2-methylimid-azolium chloride (Tegotrant A100, TGT). The last one gave potentiometric titration curves with the highest potential breaks (210-260 mV), followed with CPC (90-140 mV) and HYA (40-60 mV). Despite this, the practical use of TGT in control laboratories should economically be considered impossible for its too high price on market. According to the authors' meaning, the use of CPC as a titrant seems to be the best compromise as the steepness of the corresponding titration breaks is sufficient and its price is acceptable as well. In this contribution, a new carbon paste ion-selective electrode was introduced for ion-pair formation-based potentiometric titrations of anionic surfactants. In the electrode, an extract of hexadecylpyridinium dodecylsulfate in o-nitrophenyl octylether was used as both the binder and the electroactive ion-exchanger. Concerning titrants, three cationic compounds were examined: hexadecyl-pyridinium chloride (CPC), (diisobutylphenoxyethoxyethyl)-dimethyl-benzyl- ammonium chloride (Hyamine 1622, HYA) and 1,3-didecyl-2-methylimid-azolium chloride (Tegotrant A100, TGT). The last one gave potentiometric titration curves with the highest potential breaks (210-260 mV), followed with CPC (90-140 mV) and HYA (40-60 mV). Despite this, the practical use of TGT in control laboratories should economically be considered impossible for its too high price on market. According to the authors' meaning, the use of CPC as a titrant seems to be the best compromise as the steepness of the corresponding titration breaks is sufficient and its price is acceptable as well.
dcterms:title
Carbon Paste Ion-Selective Electrode for Ion-Pair Formation-Based Potentiometric Titrations of Anionic Surfactants Carbon Paste Ion-Selective Electrode for Ion-Pair Formation-Based Potentiometric Titrations of Anionic Surfactants
skos:prefLabel
Carbon Paste Ion-Selective Electrode for Ion-Pair Formation-Based Potentiometric Titrations of Anionic Surfactants Carbon Paste Ion-Selective Electrode for Ion-Pair Formation-Based Potentiometric Titrations of Anionic Surfactants
skos:notation
RIV/00216275:25310/14:39898266!RIV15-MSM-25310___
n3:aktivita
n8:P n8:I
n3:aktivity
I, P(EE2.3.30.0021)
n3:cisloPeriodika
září 2014
n3:dodaniDat
n6:2015
n3:domaciTvurceVysledku
n10:6143083 n10:7182554
n3:druhVysledku
n5:J
n3:duvernostUdaju
n17:S
n3:entitaPredkladatele
n9:predkladatel
n3:idSjednocenehoVysledku
6213
n3:idVysledku
RIV/00216275:25310/14:39898266
n3:jazykVysledku
n11:eng
n3:klicovaSlova
anionic surfactants; potentiometric titration; carbon paste; Ion-selective electrode
n3:klicoveSlovo
n4:anionic%20surfactants n4:potentiometric%20titration n4:Ion-selective%20electrode n4:carbon%20paste
n3:kodStatuVydavatele
CZ - Česká republika
n3:kontrolniKodProRIV
[8FB117906758]
n3:nazevZdroje
Scientific Papers of the University of Pardubice, Series A, Faculty of Chemical Technology
n3:obor
n12:CG
n3:pocetDomacichTvurcuVysledku
2
n3:pocetTvurcuVysledku
2
n3:projekt
n18:EE2.3.30.0021
n3:rokUplatneniVysledku
n6:2014
n3:svazekPeriodika
20
n3:tvurceVysledku
Mikysek, Tomáš Vytřas, Karel
s:issn
1211-5541
s:numberOfPages
8
n15:organizacniJednotka
25310