chromatography love

Definitions

from The American Heritage® Dictionary of the English Language, 5th Edition.

  • noun Any of various techniques for the separation of complex mixtures that rely on the differential affinities of substances for a mobile (gas or liquid) medium and for a stationary adsorbing (liquid or solid) medium through which they pass, such as paper, gelatin, or silica.

from The Century Dictionary.

  • noun A treatise on colors.

from the GNU version of the Collaborative International Dictionary of English.

  • noun archaic A treatise on colors.
  • noun (Chem.) an analytical and preparative technique for separating substances by differences in their selective adsorption to solids, by passing a liquid over the solid, to which the substances to be separated have usually been adsorbed in a preliminary step. The major variations are column chromatography, in which the substances to be separated are adsorbed to a column with any of a wide variety of adsorbing solids in powdered or granulated form; paper chromatography, in which the solids are applied as a spot at one end of a strip of absorbent paper (such as filter paper), and the liquid is percolated through the paper by capillary action; and thin-layer chromatography (TLC), which is similar to paper chromatography, but the adsorbent material is, instead of paper, a thin layer of finely powdered material, such as cellulose or silica, on a backing of glass or plastic, called a TLC plate. A modern version of column chromatography is high-performance liquid chromatography, usually referred to as HPLC.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

  • noun chemistry Any of various techniques for the qualitative or quantitative separation of the components of mixtures of compounds; all characterised by the use of a mobile phase (gas or liquid) moving relative to a stationary phase (liquid or solid) - the differences between the rates of migration of the compounds between the two phases effects the separation.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • noun a process used for separating mixtures by virtue of differences in absorbency

Etymologies

from Wiktionary, Creative Commons Attribution/Share-Alike License

chromato- + -graphy

Examples

  • Chromatography was first developed more than a century ago and solid state gas chromatography is more than 60 years old.

    The Explainer: Plastics

  • Essentially, chromatography is a filtering process that allows distinct compounds or molecules to be separated by molecular size and weight.

    Richard Kuhn and the Chemical Institute: Double Bonds and Biological Mechanisms

  • High-fructose corn syrup is made through a process called chromatography, or a distillation of the fructose, in which it is exposed to a series of enzymes to convert cornstarch to 90 percent fructose.

    The Daily Barometer

  • High-fructose corn syrup is made through a process called chromatography, or a distillation of the fructose, in which it is exposed to a series of enzymes to convert cornstarch to 90 percent fructose.

    The Daily Barometer

  • Screening for high-oleic acid by any breeding programs was done by measuring fatty acid content of the seeds by using gas chromatography, which is a destructive method.

    Clovis News Journal : News

  • Traditionally, these analyses are done with gas chromatography, which is expensive, time-consuming and requires bulky devices and skilled analysts.

    Science News / Features, Blog Entries, Column Entries, Issues, News Items and Book Reviews

  • This process of separating molecules by size and weight is called chromatography ” so named because it was first used in the laboratory to separate colored dyes.

    In the Primordial Soup

  • They analyze a wide variety of chemical compounds, using testing methods such as chromatography or spectroscopy.

    BioSpace.com Featured News and Stories

  • Have a thorough understanding of laboratory procedures and laboratory skills, the practices, principles, and theory of specific disciplines such as chromatography, raw material analysis, laboratory instrumentation, etc (essential)

    Naturejobs - All Jobs

  • Have a thorough understanding of laboratory procedures and laboratory skills, the practices, principles, and theory of specific disciplines such as chromatography, raw material analysis, laboratory instrumentation, etc (essential)

    Naturejobs - All Jobs

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