chromatographer

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:
1725–35; chromato- + -graphy

chromatographer, noun
chromatographic [kruh-mat-uh-graf-ik, kroh-muh-tuh-] , adjective
chromatographically, adverb
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World English Dictionary
chromatography (ˌkrəʊməˈtɒɡrəfɪ)
 
n
See also gas chromatography 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)
 
chroma'tographer
 
n
 
chromatographic
 
adj
 
chromato'graphically
 
adv

Collins English Dictionary - Complete & Unabridged 10th Edition
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Etymonline
Word Origin & History

chromatography
1731, from chromato-, Latinized comb. form of Gk. khroma "color" (see chromatic) + English -graphy, from -graphia "description," from graphein "to write" (about).
Online Etymology Dictionary, © 2010 Douglas Harper
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American Heritage
Medical Dictionary

chromatography chro·ma·tog·ra·phy (krō'mə-tŏg'rə-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. Also called absorption chromatography.


chro'ma·tog'ra·pher n.
The American Heritage® Stedman's Medical Dictionary
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American Heritage
Science Dictionary
chromatography   (krō'mə-tŏg'rə-fē)  Pronunciation Key 
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 © 2002. Published by Houghton Mifflin. All rights reserved.
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