Carrier gas - in gas chromatography, the vaporized sample is swept along the column by a carrier gas, usually nitrogen, helium or argon
Chromatographic column - a part of a gas chromatograph which is put inside the oven; the stationary phase particles are coated onto the inside of the column
Dioxin - dioxins are environmentally persistent organic pollutants formed primarily as by-products from the incomplete burning of household and industrial wastes
Formaldehyde - with the chemical formula HCHO, a common indoor air pollutant
Gas-liquid chromatography - a chromatographic technique using a gas as the mobile phase and a non-volatile liquid as the stationary phase
Gas-solid chromatography - a chromatographic technique using a gas as the mobile phase and a solid as the stationary phase
Injector - a part of a gas chromatograph where a sample is injected into the column
Retention time - the time a component is held on a column under given conditions is characteristic of the component and is called its retention time (symbol: Rt)&
Urea-formaldehyde resin - these resins are used as adhesives in materials such as particle board, medium-density fibreboard and plywood