Gas chromatography (GC)

Gas chromatography (GC)
A type of automated chromatography (a technique used to separate mixtures of substances) in which the mixture to be analyzed is vaporized and carried by an inert gas through a special column and thence to a detection device. The special column can contain an inert porous solid (in gas-solid chromatography) or a liquid coated on a solid support (in gas-liquid chromatography). The basic aim with GC is to separate each component that was in the mixture so that it produces a different peak in the detection device output which is graphed on a chart recorder. GC is a valuable tool in biochemistry (and other fields of chemistry, as in the analysis of perfumes).

Medical dictionary. 2011.

Игры ⚽ Поможем написать курсовую

Look at other dictionaries:

  • Gas chromatography — A gas chromatograph with a headspace sampler Acronym GLC, GC Classification chromatography Analytes organic inorganic …   Wikipedia

  • gas chromatography — n chromatography in which the sample mixture is vaporized and injected into a stream of carrier gas (as nitrogen or helium) moving through a column containing a stationary phase composed of a liquid or a particulate solid and is separated into… …   Medical dictionary

  • gas chromatography — n. chromatography in which a gas, often nitrogen, combines with a vaporized mixture that is then passed through a long column of adsorbent material to identify its constituents * * * ▪ chemistry       in analytical chemistry, technique for… …   Universalium

  • gas chromatography — n. chromatography in which a gas, often nitrogen, combines with a vaporized mixture that is then passed through a long column of adsorbent material to identify its constituents …   English World dictionary

  • gas chromatography — dujų chromatografija statusas T sritis Standartizacija ir metrologija apibrėžtis Chromatografija, kai judanti fazė – dujos. atitikmenys: angl. gas chromatography; vapor phase chromatography; vapour phase chromatography vok. Gaschromatographie, f… …   Penkiakalbis aiškinamasis metrologijos terminų žodynas

  • gas chromatography — dujų chromatografija statusas T sritis chemija apibrėžtis Chromatografija, kai judanti fazė – dujos. atitikmenys: angl. gas chromatography; GC; vapor phase chromatography; vapour phase chromatography rus. газовая хроматография …   Chemijos terminų aiškinamasis žodynas

  • Gas chromatography-mass spectrometry — (GC MS) is a method that combines the features of gas liquid chromatography and mass spectrometry to identify different substances within a test sample. Applications of GC MS include drug detection, fire investigation, environmental analysis,… …   Wikipedia

  • gas chromatography (GC) — Type of chromatography with a gas mixture as the mobile phase. In a packed column, the packing or solid support (held in a tube) serves as the stationary phase (vapour phase chromatography, or VPC) or is coated with a liquid stationary phase (gas …   Universalium

  • gas chromatography — noun : chromatography in which the sample mixture is vaporized and injected into a stream of carrier gas (as nitrogen or helium) moving through a column containing a stationary phase comprised of a liquid or a particulate solid and is separated… …   Useful english dictionary

  • gas chromatography — /gæs kroʊməˈtɒgrəfi/ (say gas krohmuh togruhfee) noun a very sensitive method of analysing a complex mixture of volatile substances, which depends on the relative speeds with which the various components of the mixture pass through a long, narrow …  

Share the article and excerpts

Direct link
Do a right-click on the link above
and select “Copy Link”