Work

Transient Potential Signals from Ion-Selective Electrodes Based on Plasticized Polymeric Membranes—Fundamentals and Applications

Year: 2026

Type: article

Abstract: This review examines the reported research on the potential responses of ion-selective electrodes over time when exposed to sudden changes in the concentration of the primary ion (ion initially present in the ion-selective electrode membrane) and/or foreign interfering ions. Particular attention is given to the responses of liquid- and plasticized polymeric membrane-based ion-selective electrodes to foreign ions. The review provides an in-depth discussion of the theoretical models proposed to describe transient potential signals obtained experimentally with these ion-selective electrodes. In chronological order, the different contributions are presented and commented on in terms of their assumptions and mathematical treatments. The final equations obtained in each case, as well as some stages of their derivations, are presented. Additionally, the various models are classified and critically commented upon. Lastly, the review discusses the analytical applications reported for identifying and quantifying ions using the transient potential signals.

Source: Chemosensors

DOI: 10.3390/chemosensors14050102

Authors: José Manuel Olmos, José Antonio González-Franco, Joaquín Ángel Ortuño

Institution: Universidad de Murcia

Language: English

Topic: Analytical Chemistry and Sensors

Subfield: Bioengineering

Field: Chemical Engineering

Domain: Physical Sciences

Open Access status: gold

Estimated APC paid: $2,413

Funders: Ministerio de Ciencia, Innovación y Universidades, Ministerio de Ciencia e Innovación