Ion-selective electrode in which the ion-selective membrane contacts the electronic conductor without internal electrolyte solution.
Notes: - Charge transfer is accomplished in the membrane by both ionic and electronic conductivities (mixed conductors).
- The inner reference electrode is replaced by an electronic conductor, e.g., a bromide sensor film of \(\ce{AgBr}\) is reversibly contacted with \(\ce{Ag}\), or an anion sensor based on cation radical salts is contacted with \(\ce{Pt}\).
Source:
PAC, 2020, 92, 641. 'Terminology of Electrochemical Methods of Analysis (IUPAC Recommendations 2019)' on page 661 (https://doi.org/10.1515/pac-2018-0109)