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Amperometric Ion-Selective Electrode for Alkali Metal Cations Based on a Room-Temperature Ionic Liquid Membrane
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SYSNO ASEP 0329201 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Amperometric Ion-Selective Electrode for Alkali Metal Cations Based on a Room-Temperature Ionic Liquid Membrane Title Amperometrická iontově selektivní elektroda pro kationy alkalických kovů s membránou z iontové kapaliny Author(s) Langmaier, Jan (UFCH-W) RID, ORCID, SAI
Trojánek, Antonín (UFCH-W) RID
Samec, Zdeněk (UFCH-W) RID, ORCIDSource Title Electroanalysis. - : Wiley - ISSN 1040-0397
Roč. 21, 17-18 (2009), s. 1977-1983Number of pages 7 s. Language eng - English Country DE - Germany Keywords room-temperature ionic liquid ; alkali metals ; Crown ether ; cyclic voltammetry ; amperometric ion-selective elkectrode Subject RIV CG - Electrochemistry R&D Projects ME08098 GA MŠMT - Ministry of Education, Youth and Sports (MEYS) IAA400400704 GA AV ČR - Academy of Sciences of the Czech Republic (AV ČR) CEZ AV0Z40400503 - UFCH-W (2005-2011) UT WOS 000270399100013 DOI 10.1002/elan.200904623 Annotation Cyclic voltammetry is used to study the transfer of a series of cations and anions across a room-temperature ionic liquid membrane composed of tridodecylmethylammonium cation and tetrakis[3,5-bis(trifluoromethyl) phenyl]borate anion. It is shown that the addition of water-soluble crown ether (e.g. 18-crown-6) to the aqueous phase makes it possible to distinguish the voltammetric responses of alkali and alkaline earth metal cations. The determination of low concentrations of K+ (0.05-0.3 mM) in the presence of an excess of Mg2+ (1 mM) in water is demonstrated as a model application of an amperometric ion-selective electrode for K+. Workplace J. Heyrovsky Institute of Physical Chemistry Contact Michaela Knapová, michaela.knapova@jh-inst.cas.cz, Tel.: 266 053 196 Year of Publishing 2010
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