Method of making a wall-coated open tubular capillary column with a poly benzyl stationary phase

A method of making a wall-coated open tubular capillary column with a poly benzyl stationary phase, comprising:

• cleaning an inner wall of a fused silica capillary column to obtain a cleaned inner wall;
• rinsing the cleaned inner wall of the fused silica capillary column with a sodium hydroxide solution, followed by rinsing with bi-distilled water, rinsing with a hydrochloric acid solution, and again rinsing with the bi-distilled water to obtain a fused silica capillary column having activated silanol groups;
• flushing the fused silica capillary column having activated silanol groups with isopropanol to form a pre-treated capillary column;
• loading the pre-treated capillary column with a mixture of phenyl trimethoxy silane and an alcohol to obtain a loaded pre-treated capillary column having activated silanol groups;
• heating the loaded pre-treated capillary column having activated silanol groups to form a treated capillary column;
• washing the treated capillary column;
• and
• coating a poly benzyl stationary phase on the inner wall through condensation polymerization of benzyl chloride monomers with a Lewis acid catalyst in a non-polar solvent.