𝐸 𝑝,∞ serves as a Nernstian potential, like 𝐸 𝑒𝑞 for steady state reactions. We can then define the peak separation (Eq. 43a) that is caused by Eq. 41c not being fulfilled by taking the derivative of Eq. 41a to find the peak position for scan rates greater than zero (Eq. 43b). This leads to Eq. 43c which provides the relationship between the rate constant, the scan rate, and the experimentally observable peak separation.