Why mixture of solvents are to be used in Mobile phase ???
Non- polar molecules in the mixture that are to be seperated
Will have little attraction for the water molecules attached to the cellulose and so will spend most of their time dissolved in the moving solvent
The mobile phase flows through the stationary phase and carries the components of the mixture with it. ...Mobile Phases in Normal PhaseChromatography Typically non polarsolvents such as hexane, heptane, iso-octane are used in combination with slightly more polar solvents such as isopropanol, ethyl-acetate or chloroform