Dispersion in Chromatography Columns - Effect of Mobile Phase Compressibility On the HETP Equation for a Packed GC Column > Page 40
Substituting for (Px) from equation (25) in equation (24),
Let w =
Furthermore, when x=0, then and when w = L, then .
Substituting for and (dx) in equation (26) and inserting the new limits and integrating,
Thus, the complete HETP equation for a packed GC column, that takes into account the compressibility of the carrier gas, will be