Gas Chromatography (GC) Is A Common Type Of Chromatography Used In Analytical Chemistry For Separating And Analyzing Compounds That Can Be Vaporized Without Decomposition. Typical Uses Of GC Include Testing The Purity Of A Particular Substance, Or Separating The Different Components Of A Mixture.[1] In Preparative Chromatography, GC Can Be Used To Prepare Pure Compounds From A Mixture