From the solution obtained for the faradaic response to a triple pulse of potentials we developed new triple-pulse voltammetry and polarography techniques. Among these we propose the double differential pulse (DDP) technique which involves using the current function i₃-2i₂+i₁ where i_j is the current corresponding to potential pulse E_j. We also obtained the solution for the reverse differential pulse (RDP) technique which involves using the current function i₃-i₂.

In this paper we obtained for the DDP and RDP the analytical solution for a slow electronic transfer process. These solutions are valid for the planar approximations of a static mercury drop electrode (SMDE) and of a dropping mercury electrode (DME). We also obtained the solution for these techniques for a reversible charge transfer process in presence or absence of amalgamation for a static spherical electrode.