... gel in different usages, such as for Column-layer Chromatography, thin-layer Chromatography,air drying, catalyst carrier, liquid drying,etc.We ... and pharmaceutical industry.11) Silica gel for thin layer Chromatography: Used for analysis and separation of various natural and ... elute before more polar ones, hence the name normal phase chromatography. However, when hydrophobic groups (such as C18 groups) ...