Selectivity, Sensitivity and Detection Range in Ion-Selective Membrane-Based Electrochemical Potentiometric Sensors Analyzed With Poisson-Boltzmann Equilibrium Model

We present and validate an equilibrium model based on the Poisson-Boltzmann equations that includes main ingredients to simulate ion-sensitive membranes in context of electrochemical potentiometric sensors with without ionophores. With respect phase boundary models, our spatial resolution electrostatic potential concentrations. The enables study Nernstian non-Nernstian responses, helps improving detection range investigating selectivity cross-sensitivity issues related interferent ions sample solution. Therefore, is a useful support for design microelectronic optimizing relevant membrane features such as ionic sites ionophore concentration best sensitivity selectivity.