Plate Theory and Extensions - The Peak Capacity of a Chromatographic Column > Page 94

In a similar way it can be shown that the base width (w(r -2)) of peak (r -2) will be

Substituting for  from (x),

 

and                

Thus, assuming that the number of peaks that can be fitted into the chromatogram between the 'dead time' and the time for the complete elution of the last peak is (r), then