i. In chromatography, migration of the solute relative to the solvent front gives an idea about the relative retention of the solutes (or components of t the mixture) on the stationary phase.
ii. The relative adsorption of solutes is expressed in terms of its Rf value.
The symbol Rf stands for Retardation Factor.
∴ Rf = \(\frac{Distance\,travelled\,by\,the\,solute\,from\,the\,base\,line}{Distance\,travelled\,by\,the\,solvent\,from\,the\,base\,line}\)
