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constant-potential coulometry

chemistry

Quick Summary

Constant-potential coulometry is a method in analytical chemistry used to determine the quantity of a substance. It is based on Faraday's law, which states a direct relationship between the amount of chemical change and the quantity of electricity used.

In this technique, the potential of an electrode is controlled so that only a specific electrochemical reaction involving the analyte can occur. This prevents interference from other substances, allowing for a precise measurement of the analyte's quantity by monitoring the total amount of electricity consumed during the reaction.12

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