I prepared a perp TLC using silica gel G , but my silica gel doesn't have any fluorescent material so I can't see the compound separated under UV light. So is there any way I can see visualize the spots and can collect them.
There are many ways to visualize non-fluorescent compounds. The methods depend on the chemical structure of the compounds, the presence of functional groups, etc. You can find these methods by queries, for example, "tcl amino acid detection", or , in general, "tcl visualization reagents", "tcl plate development".