column chromatography


noun Chemistry.

See under chromatography.

Definition for column chromatography (2 of 2)

chromatography

[ kroh-muh-tog-ruh-fee ]
/ ˌkroʊ məˈtɒg rə fi /

noun Chemistry.

the separation of mixtures into their constituents by preferential adsorption by a solid, as a column of silica (column chromatography) or a strip of filter paper (paper chromatography) or by a gel.

Origin of chromatography

First recorded in 1725–35; chromato- + -graphy

Related forms

chro·ma·tog·ra·pher, nounchro·mat·o·graph·ic [kruh-mat-uh-graf-ik, kroh-muh-tuh-] /krəˌmæt əˈgræf ɪk, ˌkroʊ mə tə-/, adjectivechro·ma·to·graph·i·cal·ly, adverb
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

British Dictionary definitions for column chromatography

chromatography

/ (ˌkrəʊməˈtɒɡrəfɪ) /

noun

the technique of separating and analysing the components of a mixture of liquids or gases by selective adsorption in, for example, a column of powder (column chromatography) or on a strip of paper (paper chromatography)See also gas chromatography

Derived Forms

chromatographer, nounchromatographic (ˌkrəʊmətəˈɡræfɪk), adjectivechromatographically, adverb
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

Medicine definitions for column chromatography (1 of 2)

chromatography

[ krō′mə-tŏgrə-fē ]

n.

Any of various techniques for the separation of complex mixtures that rely on the differential affinities of substances for a gas or liquid mobile medium and for a stationary adsorbing medium through which they pass, such as paper, gelatin, or magnesia.absorption chromatography

Related forms

chro′ma•togra•pher n.

Medicine definitions for column chromatography (2 of 2)

column chromatography


n.

A form of partition chromatography in which a liquid phase flows down a column packed with a solid phase.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.

Science definitions for column chromatography

chromatography

[ krō′mə-tŏgrə-fē ]

A technique used to separate the components of a chemical mixture by moving the mixture along a stationary material, such as gelatin. Different components of the mixture are caught by the material at different rates and form isolated bands that can then be analyzed.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.