Chemistry Reference
In-Depth Information
Potential (V)
Potential (V)
2.11
Electrical-current signal profile in normal pulse voltammetry as a
function of applied potential step with increasing amplitude.
be seen that if the pulses are superponated on a DC offset located in the
limiting-current region of a preceding wave they can be separated very well
because the contribution of the preceding wave to the pulse current is
almost zero. Its main contribution is located in the DC offset.
Normal pulse voltammetry is mainly used when the condition of the elec-
trode surface should be kept constant but applying a potential would have
a serious effect on this condition. In normal pulse voltammetry, the applied
potential to the electrode is always the DC offset, except for those short
