Planar electrochromatography on nonwetted layers with binary mobile phases

Planar electrochromatography has been performed on nonwetted silica gel and aluminium oxide layers. The electric field influences the migration veloci ty or the mobile phase (thus affecting chromatogram development time), the migration of chromatographed substances, and the shape of chromatographic p eaks. The effect has been shown for a nonpolar binary mobile phase and nonp olar chromatographed substances (PAW) and for a polar mobile phase and pola r chromatographed substances (phenol and quinoline derivatives). The electr ic field has different effects on the chromatographic process on the anode and cathode sides of the chromatogram.