Large-amplitude potential step rigorous approach

1 Large-amplitude potential step rigorous approach 

The derivation is most elegantly performed by the Laplace transform method, starting with the general relationship, valid for semi-infinite linear diffusion. 

For the inverse transformation, it is necessary to separate the term [s 4-bs1/2 + a] 1 into partial fractions. 

The resulting expressions for —jF/F = tijVi + nnvn may be used either to analyze the current vs. time functions at fixed potential [128] or the current vs. potential function, e.g. measured in the normal pulse polaro-gram or the d.c. polarogram [127]. In the latter reference, the mathematics pertaining to the dropping mercury electrode (expanding plane 

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