Number of the records: 1
Current-polarized ion-selective membranes: The influence of plasticizer and lipophilic background electrolyte on concentration profiles, resistance, and voltage transients
- 1.
SYSNO ASEP 0322895 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Current-polarized ion-selective membranes: The influence of plasticizer and lipophilic background electrolyte on concentration profiles, resistance, and voltage transients Title Proudem polarizované iontově selektivní membrány: Vliv plastifikátoru a lipofilního základního elektrolytu na koncentrační profil, odpor a dynamiku potenciálových změn Author(s) Zook, J. M. (US)
Langmaier, Jan (UFCH-W) RID, ORCID, SAI
Lindner, E. (US)Source Title Sensors and Actuators B - Chemical. - : Elsevier
Roč. 136, č. 2 (2009), s. 410-418Number of pages 9 s. Language eng - English Country CH - Switzerland Keywords spectroelectrochemical microscopy ; ion-selective electrodes ; plasticizer ; migration Subject RIV CG - Electrochemistry CEZ AV0Z40400503 - UFCH-W (2005-2011) UT WOS 000264089600022 DOI 10.1016/j.snb.2008.12.047 Annotation Lipophilic background electrolytes consisting of a lipophilic cation and a lipophilic anion, Such as tetradodecylammonium tetra kis(4-chlorophenyl) borate (ETH 500), or bis(triphenylphosphoranylidene) ammonium tetrakis[3,5bis(trifluoromethyl) phenyl] borate (BTPPATFPB) are incorporated into the membranes of ion-selective electrodes (ISEs) to improve the detection limit and selectivity of the electrodes and decrease the resistance of the sensing membrane. In this work, spectroelectrochemical microscopy (SpECM) is used in conjunction with chronopotentiometry to quantify the effects of a lipophilic background ground electrolyte on the concentration profiles induced inside current-polarized membranes and on the measured voltage transients in chronopotentiometric experiments. In agreement with the theoretical model, the lipophilic background electrolyte incorporated into o-NPOE or DOS plasticized membranes decreases the membrane resistance ... Workplace J. Heyrovsky Institute of Physical Chemistry Contact Michaela Knapová, michaela.knapova@jh-inst.cas.cz, Tel.: 266 053 196 Year of Publishing 2009
Number of the records: 1