"Lipophilic salts as membrane additives and their influence on the prop" by D. Ammann, E. Pretsch et al.
 

Lipophilic salts as membrane additives and their influence on the properties of macro- and micro-electrodes based on neutral carriers

Abstract

The influence of salts containing lipophilic cations and anions on the electrical resistance of the membranes of calcium ion-selective macro- and micro-electrodes based on a neutral carrier is described. The resistance of macroelectrodes was decreased by a factor of about 50 or of about 3 compared to membranes without and with potassium tetrakis- (p-chlorophenyl)borate, respectively. No significant reduction of the membrane resistance was achieved for microelectrodes. The lower detection limit and the Ca2+/K+ selectivity factor were improved for both types of electrode. © 1985.

Publication Title

Analytica Chimica Acta

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