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Updated: Jun 28, 2026

Potentiodynamic Corrosion Testing
Published on: September 4, 2016
Investigation by automated differential pulse anodic-stripping voltammetry of the problem of storage of dilute
1Department of Inorganic Chemistry, University of Melbourne, Parkville 3052, Victoria, Australia.
Abstract:
The storage of dilute solutions of metal ions before their laboratory analysis presents a difficult problem in the examination of many environmental samples. By utilizing the solution container as an electrochemical cell and employing the method of differential pulse anodic-stripping voltammetry at a hanging mercury drop electrode, it is shown that an automated read-out system in an enclosed environment can be developed for monitoring the solution-container interactions that occur over short or extended periods of time. In the present work, interactions of dilute solutions (1-10 mug/l.) of cadmium(II), lead(II), copper(II), zinc(II), and thallium(I) in glass, polyethylene and Teflon containers have been investigated at various pH values and in different ionic environments. The results demonstrate the importance of factors other than pH.
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