Lipophilic salts as membrane additives and their influence on the properties of macro- and micro-electrodes based on neutral carriers |
| |
| Authors: | D Ammann E Pretsch W Simon E Lindner A Bezegh E Pungor |
| |
| Institution: | Swiss Federal Institute of Technology (ETH), Department of Organic Chemistry, CH-8092 Zürich Switzerland;Institute for General and Analytical Chemistry, Technical University, H-1502 Budapest Hungary |
| |
| 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. |
| |
| Keywords: | |
| 本文献已被 ScienceDirect 等数据库收录！ |
