Mass Transport Properties and Influence of Natural Convection for Voltammetry at the Agarose Hydrogel Interface

Agarose hydrogel, a solid electrolyte, was investigated voltammetrically in terms of transport properties and natural convection effects using ferrocenyl compound as redox probe. To confirm the diffusion solute on agarose interface, coefficients (D) ferrocenemethanol hydrogel were determined by cyclic voltammetry (CV) according to concentration hydrogel. While value D interface is smaller than that bulk solution, square root scan rate-dependent peak current reveals mass behavior surface shows negligible or migration effects. In order reduced gel CV performed solution phase surface, respectively. Slow at can determine conventional reproducible diffusion-controlled down rate 0.3 mV/s without any complicated equipment.