a process by which components of a mixture are separated.
A technique for separating a mixture into individual components by repeated adsorption and desorption on a confined solid bed used for analysis of natural gas and natural gas liquids.
a technique used to analyse or separate proteins and DNA
a process in which a chemical mixture, carried by a liquid or gas, is separated into components
a technique used by biochemists to separate and identify biological molecules by comparing the rate of travel on paper of different molecules
a technique used to separate molecules based on how they bind to various solids, liquids, or gases.
Biochemical technique in which a mixture of substances is separated by charge, size, or some other property by allowing it to partition between a moving phase and a stationary phase.
Chromatography refers to a range of physical methods used to separate and analyse complex mixtures.
A technique for separating the components of a mixture on the basis of differences in their affinity for a stationary and a mobile phase.
Group of techniques used to separate mixtures of substances based on differences in the relative affinities of the substances for two different media. One media is a moving fluid; the other is stationary.
A method of separation in which molecules are separated according to chemical characteristics or size. There are several methods of suitably separating and purifying proteins, many of which rely on liquid chromatography, by which proteins are dissolved in suitable buffers and are isolated based on interactions with solid, chemically charged matrices. See also Dialysis.
the separation of a mixture using a technique based on differential adsorption of substances in the mixture for a moving phase and a stationary phase. (see gas chromatography, paper chromatography, thin layer chromatography) cis-2-pentene cis configuration: a term applied to geometric isomers; it denotes an arrangement in which the substituted groups are on the same side of the double bond. (see trans configuration cis-trans isomerism: molecules with the same molecular formula, but containing the the same atoms or groups of atoms arranged either on the same side of the plane of the C=C double bond ( cis configuration) or on opposite sides of the plane of the bond ( trans configuration).
krow-mat-og-graph-ee Separating dissolved solids from one another. The solids are usually coloured.
A chemical technique in which organic compounds can be separated using columns or sheets of filtering material (see geochromatography).
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). omparison Sample: 1) A sample of material collected from a fire scene which is, to the best of the investigators knowledge, identical in every respect to a sample suspected of containing accelerant, but which does not contain accelerant. 2) A sample of suspected accelerant submitted for the purpose of comparing with any accelerant separated from a debris sample.
Chromatography is a process for separating mixtures such as gases into their component parts for analytical purposes.
a process used for separating mixtures by virtue of differences in absorbency
The process of separating differently coloured compounds by some physical means, such as the different speeds at which they soak into white blotting paper. The coloured compounds "spread out" into bands or circles, and can then be identified. See also Gas Chromatography.
A purification method in which a liquid chemical mixture is separated into its components by passing (or filtering) it through a stationary material (liquid or solid). This process removes pathogens and other contaminants (impurities, infectious agents) to help purify the IGIV.
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.
A method of separating a mixture of compounds by the use of a porous material.
Techniques used to separate molecules based on their relative affinity for various liquid or gas mediums.
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).
The separation of chemical substances and particles by differential movement through a two-phased system.[22
A field of Analytical Science in which materials are separated for later identification or quantitation.
A method for identifying substances and testing the purity of their compounds. Components of a substance separate and the rate at which they adsorb and dissolve is measured. Substance-specific chromatography methods include Thin-Layer Chromatography (TLC), Gas Chromatography, High Pressure Liquid Chromatography (HPLC) and Three-Dimensional HPLC.
A chemical technique used to separate different molecules in a mixture. The mixture is passed over or through a material which retards the molecules in the mixture to different degrees. This means that the components of the mixture pass through the chromatography material at different rates, and can be separated.
The separation of a mixture of substances by charge, size, or other property by allowing the mixture to partition between a moving phase and a stationary phase.
A chemical separation technique based on the differential distribution of the constituents of a mixture between two phases, one of which moves relative to the other.
A way of separating different coloured substances in a liquid
A method of separating chemical substances from each other and identifying the components from mixtures of molecules having similar properties.
Procedure for separating components from a mixture of chemical substances which depends on selective retardation and physical absorption of substances by a porous bed of sorptive media as the substances are transported through the bed by a moving fluid; the sorptive bed (stationary phase) may be a solid or a liquid dispersed on a porous, inert solid; the moving fluid (moving phase) may be a liquid solution of the substances or a mixture of a carrier gas and the vapourised sample; various detection techniques are used, some of which can be automated.
A series of related techniques for the separation of a mixture of compounds by their distribution between two phases. In gas-liquid chromatography the distribution is between a gaseous and a liquid phase. In column chromatography the distribution is between a liquid and a solid phase.
Chromatography is a method for separating mixtures based on differences in the speed at which they migrate over or through a stationary phase.
a technique for separating complex mixtures of chemicals or proteins into their various constituents.
A process used for separating mixtures by virtue of different affinities of substances for various media, such as paper, gas, or gelatin.
Chemical analysis that separates components into various parts.
Literally "color movement," a term describing a separation technique that occurs based upon the difference of interaction of sample components with two phases - a "stationary" phase (or non-moving) and a "mobile" phase (or moving).
A chemical analytical technique which utilizes a process of separating gases, liquids, or solids from mixtures or solutions by selective adsorption.
Separation of substances in a mixture based on their affinity for certain solvents and solid surfaces. It can also be used to separate labeled DNA from free nucleotides with the Princeton clean-up kits.
Chromatography (from Greek χÏώμα:chroma, colour) is the collective term for a family of laboratory techniques for the separation of mixtures. It involves passing a mixture through a stationary phase, which separates the analyte to be measured from other molecules in the mixture and allows it to be isolated.