Publication Type
Journal
Journal Name
Review of Scientific Instruments
Publication Date
Volume
83
Issue
8
Abstract
We examine the validity of three common methods for analysis and correction of the electrode polarization (EP) effect in dielectric spectroscopy measurements of conductive liquid samples. The methods considered are (i) algorithmic treatment by modeling the EP behavior at constant phase angle,
(ii) varying the size of the electrode gap, and (iii) polypyrrole (PPyPss) layered electrodes. The latter
is a relatively recent innovation suggested to be an efficient solution. We demonstrate that PPyPss
coated electrodes do not diminish the effect of EP, and even add relaxation processes of its own. Our
conclusion is that these polymer coated electrodes are not suitable for the correction of electrode
polarization.
