The oxidation of o-dianisidine (o-DIA) is electrochemically reversible and involves the transfer of two electrons. Linear sweep voltammetry was performed on a 2 M H, SO, solution containing 2.32 mM of o-DIA using a carbon paste electrode with an area of 2.56 mm². At a scan rate of 500.0 mV/s the peak current was 5.61 µA. Determine the diffusion coefficient, D, for o-DIA. D = cm2/s Determine the peak current if the scan rate is reduced to 350.0 mV/s. Ipe = HA %3D

The oxidation of o-dianisidine (o-DIA) is electrochemically reversible and involves the transfer of two electrons. Linear sweep voltammetry was performed on a 2 M H, SO, solution containing 2.32 mM of o-DIA using a carbon paste electrode with an area of 2.56 mm². At a scan rate of 500.0 mV/s the peak current was 5.61 µA. Determine the diffusion coefficient, D, for o-DIA. D = cm2/s Determine the peak current if the scan rate is reduced to 350.0 mV/s. Ipe = HA %3D

Principles of Instrumental Analysis

7th Edition

ISBN:9781305577213

Author:Douglas A. Skoog, F. James Holler, Stanley R. Crouch

Publisher:Douglas A. Skoog, F. James Holler, Stanley R. Crouch

Chapter25: Voltammetry

Section: Chapter Questions

Problem 25.11QAP

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