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单词 gas chromatography
释义

gas chromatographyn.

Brit. /ˌɡas krəʊməˈtɒɡrəfi/, U.S. /ˌɡæs ˌkroʊməˈtɑɡrəfi/
Origin: Formed within English, by compounding. Etymons: gas n.1, chromatography n.
Etymology: < gas n.1 + chromatography n.
Chemistry.
Chromatography in which a gas is used as the moving carrier phase, transporting a gaseous or vaporized sample through a tube containing the (solid or liquid) stationary phase, and causing the constituents of the sample to move at different rates and so become separated.
ΘΚΠ
the world > matter > chemistry > chemical assay or analytical chemistry > [noun] > acetimetry > chromatography > types
partition chromatography1943
paper chromatography1947
ionography1950
gas chromatography1952
thin-layer chromatography1957
TLC1961
affinity chromatography1968
1952 Industr. & Engin. Chem. 44 645/1 The effects of longitudinal diffusion have been studied experimentally in the related case of gas chromatography by Barrow and coworkers.
1973 New Scientist 22 Mar. (Instrument Suppl.) 3/2 To be able to analyse a substance by gas chromatography it must first be possible to volatilise the substance itself without causing decomposition.
1992 C. A. Smith & E. J. Wood Biosynthesis v. 95 The product of this reaction can be readily detected by gas chromatography.
2009 A. Lehrer Wine & Conversat. (ed. 2) xii. 188 Gas chromatography has been especially important, enabling scientists to identify over 1,000 wine aroma compounds.
This entry has been updated (OED Third Edition, March 2012; most recently modified version published online March 2022).
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n.1952
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