You can get the concept of: Potentiometric titration, oxidation-reduction reactions, Nernst equation, quantitative analysis.
Principle: In the course of potentiometric titration equivalence point is determined by controlling the electromotive force (EMF) of electrochemical cell, consisting of the indicator and reference electrodes. Potential indicator electrode, and hence the cell emf is the degree of activity (concentration) of ionic isotopes in the electrolyte solution.
