Practical Insights into the Impedance Response of Interdigitated Electrodes: Extraction of Relative Static Permittivity and Electrolytic Conductivity
By Benedikt Sapotta, Matthias Schwotzer, Matthias Franzreb
Published in Electroanalysis 2022
This work aims to provide a detailed under-standing of the challenges related to the computation of the relative static permittivity and electrolytic conductiv-ity of a sample medium from its impedance response recorded with interdigitated electrode (IDE) geometries. Within the scope of the study, impedance data has been measured and evaluated for a total of nine sample media using two distinct IDE geometries. Particular emphasis is laid upon the compensation of parasitic influences affect-ing the impedance response. With the raw data supporting this study fully disclosed, the reader is offered the opportunity to comprehensively retrace the evaluation procedure proposed in the text.