GC GC-MS HPLC
Chromatography, is a common type of chromatography, used in analytical chemistry for separating and analyzing compounds that can be vaporized without decomposition. The typical applications of a GC include testing the purity of a particular substance, or separating the different components of a mixture (the relative amounts of such components can also be determined). In some situations, GC may help in identifying a compound. In preparative chromatography, GC can be used to prepare pure compounds from a mixture.