Chromatography, Gas

**Definition:** Fractionation of a vaporized sample as a consequence of partition between a mobile gaseous phase and a stationary phase held in a column. Two types are gas-solid chromatography, where the fixed phase is a solid, and gas-liquid, in which the stationary phase is a nonvolatile liquid supported on an inert solid matrix.

**Tree numbers:** - E05.196.181.349

**Synonyms:** - Gas Chromatography