Bismuth electrode : An extremely promising alternative to electrochemical stripping analysis

Author(s): UjjalKumar Sur

Mercury electrode has beenwidely used in electrochemical stripping analysis of trace metals due to its high sensitivity, reproducibility, and renewability. However, due to the toxicity of mercury, alternative (environmentally friendly) electrode materials are highly desirable for both centralized and field applications. Recently, bismuth electrodes are introduced which can offer a very attractive alternative to commonly used mercury electrodes in stripping analysis. This article reviews the recent development, behaviour, scope and prospects of bismuth electrodes for stripping-based electrochemicalmeasurements of trace metals.

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