Four-contact impedance spectroscopy of conductive liquid samples (CROSBI ID 172540)
Prilog u časopisu | izvorni znanstveni rad | međunarodna recenzija
Podaci o odgovornosti
Pelc, Damjan ; Marion, Sanjin ; Basletić, Mario
engleski
Four-contact impedance spectroscopy of conductive liquid samples
We present an improved approach to the impedance spectroscopy of conductive liquid samples using four-electrode measurements. Our method enables impedance measurements of conductive liquids down to the sub-Hertz frequencies, avoiding the electrode polarization effects that usually cripple standard impedance analyzers. We have successfully tested our apparatus with aqueous solutions of potassium chloride and gelatin. The first substance has shown flat spectra from ~100 kHz down to sub-Hz range, while the results on gelatin clearly show the existence of two distinct low frequency conductive relaxations.
impedance spectroscopy; liquid samples; electrode polarization
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Podaci o izdanju
82 (7)
2011.
073907-1-073907-5
objavljeno
0034-6748
10.1063/1.3609867