Silica gel plates are widely used in thin-layer chromatography (TLC) for separating and analyzing chemical compounds. They serve as a stationary phase, allowing for the separation of mixtures based on polarity and solubility. In laboratories, these plates are essential for identifying substances, monitoring reactions, and determining purity in fields like pharmaceuticals, forensics, and environmental testing. They are also used in organic synthesis to track reaction progress and isolate specific compounds. Additionally, silica gel plates are employed in biochemistry for analyzing amino acids, lipids, and other biomolecules. Their versatility, ease of use, and cost-effectiveness make them a staple in analytical chemistry.