Gas chromatography is a common chromatography technique used for separation of compounds which can be easily vaporised without decomposing. GC is commonly used for testing purity of substances, separating different components of a mixture, for analysis of essential oils etc.

GC details:
Model Shimadzu 17A
Dual channel column oven
Column oven temperature Range: Ambient +4° C to 450° C (1° C increment)
Five temperature ramps
Two split/ splitless injection ports
Two flame ionisation detectors (FID)