Carbon paste ion-selective electrode for ion-pair formation-based potentiometric titrations of anionic surfactants

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dc.contributor.author Mikysek, Tomáš
dc.contributor.author Vytřas, Karel
dc.date.accessioned 2020-05-20T08:48:24Z
dc.date.available 2020-05-20T08:48:24Z
dc.date.issued 2014
dc.identifier.isbn 978-80-7395-814-5
dc.identifier.issn 1211-5541
dc.identifier.uri https://hdl.handle.net/10195/75429
dc.description.abstract 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 octyl ether was used as both the binder and the electroactive ion-exchanger. Concerning titrants, three cationic compounds were examined: hexadecylpyridinium chloride (CPC), (diisobutylphenoxyethoxyethyl)-dimethyl-benzylammonium 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. en
dc.format p. 123–130
dc.language.iso en
dc.publisher University of Pardubice en
dc.relation.ispartof Scientific papers of the University of Pardubice. Series A, Faculty of Chemical Technology. 20/2014 en
dc.rights open access en
dc.title Carbon paste ion-selective electrode for ion-pair formation-based potentiometric titrations of anionic surfactants en
dc.type Article en
dc.peerreviewed yes en
dc.publicationstatus published en


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