Part 20: Chronopotentiometry (CP)

Chronopotentiometry allows control of two current levels passing through the working electrode. The switching of the current polarity can be controlled by time or potential. The potential is recorded as a function of time. The current waveform in Fig. 20-1 shows the current flowing through the working electrode as a function of time.


Fig. 20-1 Current waveform of chronopotentiometry.
Fig. 20-1 Current waveform of chronopotentiometry.



Fig. 20-2 Potential-time plot.
Fig. 20-2 Potential-time plot.

Types of data that can be plotted

  1. Potential - time
  2. dE/dt - time
  3. dt/dE - time
  4. Potential - charge
last modified 2023/01/20