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Unless buffered solutions are used marked ph changes

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Unformatted text preview: solutions are used, marked pH changes can occur at the electrode surface as the reaction proceeds. 6. Stripping methods are more sensitive because the analyte is first preconcentrated by electrochemical deposition at the electrode before the electrochemical analysis. All the analyte that has been deposited can then be rapidly oxidized or reduced, producing a large current. Homework Solutions for Chem 422 Chapter 25 7. The purpose of the electrodeposition step in stripping analysis is to concentrate the analyte on the surface of the working electrode. 8. Mercury film electrode vs. Pt or carbon microele...
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