It is widely known that silica 60Å and C18 silica gel is a kindly of chromatography packing.

But what is chromatography?

Chromatography is an analytical technique commonly used for separating a mixture of chemical substances into its individual components, so that the individual components can be thoroughly analyzed.

The principle behind chromatography is allowing different components travel at different speeds to determine which substances travel more quickly and slowly. 

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