or,
Dividing by the column length, (l), the variance per unit length or of the multipath dispersion will be obtained and, thus, the multipath contribution (HM) to the overall height of the theoretical plate (H),
In fact, Van Deemter introduced a constant (2l) to account for the inhomogeneity of packing so his expression for the Multipath contribution became,
For an ideally packed column (l) will be 0.5, and under which circumstances the value fro (HM) reverts to,
.
