chromatographyn.
/krəʊməˈtɒɡrəfi/ 1. Description of colours.
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the world > matter > colour > science of colour > [noun] > description of colours
chromatography1731
1731 N. Bailey Universal Etymol. Eng. Dict. II Chromatography, a treatise of colours; also the art of painting in colours.
1835 G. Field (title) Chromatography; or a Treatise on Colours and Pigments, and their powers in Painting.
2. Chemistry. [ < German chromatographie (M. Tswett 1906, in Ber. d. Deut. Bot. Ges. XXIV. 387).] Of liquids: a process of separating and purifying the substances dissolved in a mixed solution by slow passage through a tube or over a surface of adsorbing material, making use of differences of partition, adsorption, ion-exchange, etc., and separating the constituents either as (coloured) bands or spots or by differences in speed of travel when washed through the adsorbing material. Of gases: see gas chromatography n.
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the world > matter > chemistry > chemical assay or analytical chemistry > [noun] > acetimetry > chromatography
chromatography1937
1937 Nature 20 Feb. 335/2 The adsorption method of analysis known as chromatography which has been used with such marked success in the investigation of the carotenoid field of organic chemistry.
1946 Nature 9 Nov. 675/1 Partition chromatography of the amino-acids.
1949 Abraham & Heatley in H. W. Florey Antibiotics I. ii. 100 Adsorption chromatography has been widely used in the purification of both naturally occurring and synthetic organic compounds... In this method a solution of the substances to be separated is percolated through a column of adsorbent.
1956 Nature 14 Jan. 84/1 Artefacts and serious distortion can be caused during paper chromatography if acids are present in the solution being chromatographed.
1957 Biochem. Jrnl. 66 3/2 In paper chromatography, the rate of movement of a substance relative to that of the solvent front is expressed as RF. In column chromatography R represents (movement of band)/(movement of liquid above surface of column).
1968 Times 4 Oct. 9/3 They washed people's arms with a solvent liquid and separated the various chemical components in the solvent by chromatography, a method which exploits the fact that different substances soak through solid materials at varying speeds depending on their chemical structure.
Derivatives
chromatoˈgraphic adj.
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the world > matter > chemistry > chemical assay or analytical chemistry > [adjective] > of specific types > of or relating to chromatography
chromatographic1907
chromatographical1946
1907 Jrnl. Chem. Soc. 92 ii. 144 (heading) Adsorption Analysis and Chromatographic Methods.
1949 A. G. Sanders in H. W. Florey Antibiotics I. iii. 183 A method for separating penicillins based on the paper-strip chromatographic technique.
chromatoˈgraphical adj. of, pertaining to, or involving chromatography.
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the world > matter > chemistry > chemical assay or analytical chemistry > [adjective] > of specific types > of or relating to chromatography
chromatographic1907
chromatographical1946
1946 Nature 2 Nov. 623/2 Chromatographical methods of..separation.
chromatoˈgraphically adv.
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the world > matter > chemistry > chemical assay or analytical chemistry > [adverb] > by process of specific types of chemical analysis > by means of chromatography
chromatographically1946
1946 Nature 9 Nov. 675/2 The standard spots, which have not been chromatographically developed, give a series of circular inhibition zones.
1962 A. Spector in A. Pirie Lens Metabolism 332 The chromatographically purified esterase.
This entry has not yet been fully updated (first published 1889; most recently modified version published online June 2018).
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