Dispersion in Chromatography Columns - The Golay Equation > Page 73

Now,                                 

                                                                  

or,                                                                   (57)

Again substituting for (B) and (C),

           

                  (58)

Equation (58) shows that the minimum value of (H) is solely dependent on the column radius (r) and the thermodynamic properties of the solute/phase system. As opposed to the optimum velocity, the minimum value of (H) is not dependent on the solute diffusivity.