P2EC.21 - Switchable Potentiometric Sensing Probes
- 17th International Meeting on Chemical Sensors - IMCS 2018
2018-07-15 - 2018-07-19
- P-2 - Electrochemical Sensors
- E. Zdrachek, E. Bakker - Department of Inorganic and Analytical Chemistry, University of Geneva, Geneva (Switzerland)
- 738 - 739
We present ion-selective electrodes on the basis of thin polymeric membrane (about 200 nm) deposited onto poly(3-octylthiophene) layer for use as potentiometric sensors. The influence of the membrane thickness on the resulting lower detection limit, membrane selectivity and response time is studied. Thin membranes allow one to detect cations and anions with a single electrode by means of electrochemical switching.