HPLC

Going into more detail, HPLC consists of a variety of components, including a solvent delivery pump, a degassing unit, a sample injector, a column oven, a detector, and a data processor.

GC

GC uses an inert or unreactive carrier gas as the mobile phase, and the stationary phase is generally a thin layer of liquid. As the mobile phase moves, it separates the mixture into its individual components in the stationary phase