New Chronoamperometric Technique Using Laser Ablation

摘要

New chronoamperometry,in which a diffusion layer is renewed with laser ablation of an electrode surface,was compared with conventional potential step chronoamperometry.While the two methods gave similar current-time curves obeying the Cottrell equation for oxidation of hexacyanoferrate(II),only the new method gave the well-defined current-time curve for oxidation of ascorbic acid,which has a tendency to foul the electrode surface.