How do pulse techniques and potential step techniques (e.g., chronoamperometry and chroncoulometry) differ?
They differ in the size of the potential step. For chronoamperometry and chronocoulometry, the potential step can be up to several hundred mV; that is, the potential window of the experiment is defined by the potential step. For pulse (and square wave) techniques, the magnitude of the potential step (or potential pulse) is much smaller (typically 25 – 50 mV). These potential pulses are combined with a linear or staircase wave form in order to scan the potential range. Different pulse technique use different combinations of linear and pulse wave forms, and different current sampling protocols.
