Correcting the polarization effect in low frequency Dielectric Spectroscopy
Abstract
We demonstrate a simple and robust methodology for measuring and analyzing the polarization impedance appearing at interface between electrodes and ionic solutions, in the frequency range from 1 to Hz. The method assumes no particular behavior of the electrode polarization impedance and it only makes use of the fact that the polarization effect dies out with frequency. The method allows a direct and un-biased measurement of the polarization impedance, whose behavior with the applied voltages and ionic concentration is methodically investigated. Furthermore, based on the previous findings, we propose a protocol for correcting the polarization effect in low frequency Dielectric Spectroscopy measurements of colloids. This could potentially lead to the quantitative resolution of the -dispersion regime of live cells in suspension.
Cite
@article{arxiv.0812.3361,
title = {Correcting the polarization effect in low frequency Dielectric Spectroscopy},
author = {Camelia Prodan and Corina Bot},
journal= {arXiv preprint arXiv:0812.3361},
year = {2009}
}