column chromatography


noun Chemistry.

See under chromatography.

Nearby words

  1. columbus, christopher,
  2. columcille, saint,
  3. columella,
  4. columelliform,
  5. column,
  6. column dress,
  7. column inch,
  8. column of fornix,
  9. column vector,
  10. columna

chromatography

[kroh-muh-tog-ruh-fee]

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 formschro·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

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 Formschromatographer, 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

Word Origin and History for column chromatography

chromatography

n.

1731, from chromato-, Latinized comb. form of Greek khroma (genitive khromatos) "color" (see chroma), denoting "color" or "chromatin" + -graphy. Related: Chromatograph.

Online Etymology Dictionary, © 2010 Douglas Harper

Medicine definitions for column chromatography

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 formschro′ma•togra•pher n.


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.