1) Action 2) Activity 3) Natural action 4) Natural process
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Chromatography is a method for separating mixtures based on differences in the speed at which they migrate over or through a stationary phase.
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• (n.) A treatise on colors
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http://thinkexist.com/dictionary/meaning/chromatography/
technique for separating the components, or solutes, of a mixture on the basis of the relative amounts of each solute distributed between a moving ... [8 related articles]
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http://www.britannica.com/eb/a-z/c/80
A laboratory technique used to separate different substances in a mixture. A gas or a liquid is used to pass the mixture through a column, paper, or special plate that contains absorbing materials. The substances in the mixture are separated based on how far they move through the material. The different substances may be visible to the eye or detec...
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Any process for separating materials using two phases, one stationary, and one moving.One example: gas chromatography (gas as moving phase, solid as stationary phase).
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http://www.chemicalglossary.net/definition/373-Chromatography
Chromatography is a process for separating mixtures such as gases into their component parts for analytical purposes.
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http://www.chemicalglossary.net/definition/438-Chromatography
A method for separation of the components of a sample in which the components are distributed between two phases, one of which is stationary while the other moves. In gas chromatography, the gas moves over a liquid or solid stationary phase. In liquid chromatography, the liquid mixture moves through...
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Chemical analysis technique used for separating or analysing a mixture of gases, liquids or dissolved substances. It is based upon the partition of two different and immiscible substances one of which is moving (the mobile phase) and one of which is stationary (the stationary phase).
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http://www.encyclo.co.uk/local/20474
A chemical separation procedure which separates compounds according to their affinity for an adsorbent or absorbent material. Chromatography includes Thin Layer Chromatography (TLC), Liquid Chromatography (LC), Gas Chromatography (GC), (sometimes called Gas Liquid Chromatography or GLC) and High Performance Liquid Chromatography (HPLC)
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<investigation> Techniques for separating molecules based on differential absorption and elution. Term for separation methods involving flow of a fluid carrier over a nonmobile absorbing phase. ... (18 Nov 1997) ...
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(kro″mә-tog´rә-fe) a technique for analysis of chemical substances; the substance to be analyzed is poured into a vertical glass tube containing an adsorbent and the various components of the substance move through the adsorbent at different rates of speed, according to their degree of attraction to it...
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A method of separation and identification of closely related chemical substances by their differential movement on or through certain materials, such as paper and resins, and by their specific colour reactions with certain reagents.
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A process of separating gases, liquids, or solids in a mixture or solution by adsorption, as selective adsorption on clay, silica gel, alumina, or paper.
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General term for related techniques to purify the components of peptide/protein mixtures according to molecular size, polarity, charge, recognition properties, etc
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Method for fractionation of mixtures; chromatography takes advantage of differences in size, electric charge and binding characteristics.
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Techniques for separating molecules based on differential absorption and elution. Term for separation methods involving flow of a fluid carrier over a non-mobile absorbing phase.
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Chro`ma·tog'ra·phy noun [ Greek ..., ..., color +
-graphy .] A treatise on colors
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http://www.encyclo.co.uk/webster/C/74
A test in which a pregnant woman's urine is collected and examined in a laboratory to detect illegal drugs, such as cocaine, heroin, and marijuana.
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Any of a variety of techniques used to separate mixtures of drugs and their metabolites and other chemicals into individual components based on differences in their relative affinities for two different media: a mobile phase and a stationary phase. In gas chromatography, the mobile phase is inert gas such as nitrogen or helium and the stationary ph...
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chromatography, chromograph The separation of chemical substances and particles (originally plant pigments and other highly colored compounds) by differential movement through a two-phase system. The mixture of materials to be separated is percolated through a column or sheet of some suitable chosen absorbent (e.g., an ion-exchange material); the s...
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A method for separating mixtures based on differences in the speed at which they migrate over or through a stationary phase. See also: Column Chromatography, Mixture.
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https://www.encyclo.co.uk/local/20687
noun a process used for separating mixtures by virtue of differences in absorbency
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https://www.encyclo.co.uk/local/20974
Technique for separating or analysing a mixture of gases, liquids, or dissolved substances. This is brought about by means of two immiscible substances, one of which (the mobile phase) transports the sample mixture through the other (the stationary phase). The mobile phase may be a gas or a liquid...
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a laboratory test performed on a pregnant woman's urine to detect illegal drugs, such as cocaine, heroin, and marijuana.
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https://www.stanfordchildrens.org/en/topic/default?id=glossary---pregnancy-
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