Electrochemical processes of analysis

A number of analytical methods are based on electrochemical properties in solutions. If, for example, two metallic conductors are immersed in an electrolyte solution, current can flow when an electric potential is applied. If two different metals are present in the electrolytic cell, an electric potential can be tapped. Its force is dependent on the type of electrode materials and on the composition of the solution, on the gap between the electrodes and on the electrode surface. 

A metal electrode is here immersed in a salt solution of the same metal. 

These comprise metal electrodes coated with a thin layer of sparingly soluble salt of this metal. The potential difference depends on the 

The sparingly soluble salt layer also contains a second cation which forms together with the joint anion a sparingly soluble compound with a larger solubility product than the electrode-metal compound. The poten- 

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The following electrochemical processes of analysis are discussed below ... 

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