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gas chromatography

[ gas kroh-muh-tog-ruh-fee ]

noun

, Chemistry.
  1. chromatography in which a substance is converted into vapor and mixed with a gaseous element, as nitrogen, then separated and quantified by preferential adsorption by a solid or liquid element.


gas chromatography

noun

  1. a technique for analysing a mixture of volatile substances in which the mixture is carried by an inert gas through a column packed with a selective adsorbent and a detector records on a moving strip the conductivity of the gas leaving the tube. Peaks on the resulting graph indicate the presence of a particular component Also calledgas-liquid chromatography
“Collins English Dictionary — Complete & Unabridged” 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012


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Word History and Origins

Origin of gas chromatography1

First recorded in 1950–55

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