Properties of Gaussian peak

The greater the ratio tRjw, then the greater the number of theoretical plates N in the column. 

To maximize separation efficiency requires low H and high N values. In general terms this requires that the process of repeated partitioning and equilibration of the migrating solute is accomplished rapidly. The mobile and stationary phases must be mutually well dispersed. This is achieved by packing the column with fine, porous particles providing a large surface area between the phases (0.54 rM /gin GC, 200800 rr I gin LC). Liquid stationary phases are either coated as a very thin film (0.051 m) on the surface of a porous solid support (GC) or chemically bonded to the support surface as a monomolecular layer (LC)[3]. 

Van Deemter et al.[94] provided an empirical correlation for B given below. 

In gas chromatography the B terms are usually larger than the A term, while, the A, B2 terms tend to be dominant in LC. A low concentration of a moderately bound solute should be used to evaluate the column HETP. 

Resolution Rs) is a measure of extent of separation of two peaks and is given by  

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