LIQUID SOLID CHROMATOGRAPHY   Si - O - H   Normal phase LS Reverse phase LS Silica Gel The separation mechanism in LSC is based on the competition of the components of the mixture sample for the active sites on an absorbent such as Silica Gel.LIQUID SOLID CHROMATOGRAPHY   Si - O - H   Normal phase LS Reverse phase LS Silica Gel The separation mechanism in LSC is based on the competition of the components of the mixture sample for the active sites on an absorbent such as Silica Gel