In the sample injector, the mixture is vaporized and swept into the column by the carrier gas flow. Common injector ports are split/splitless, on-column, and programmed temperature vaporizing (PTV). Gas chromatography components interact with the stationary phase coating the inner surface of the chromatographic column as they migrate along with the carrier gas flow. https://www.coherentmarketinsights.com/market-insight/gas-chromatography-market-1092