- solubility fractionation
- фракционирование по растворимости
English-Russian dictionary of chemistre. 2014.
solubility fractionation
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Fractionation — See also: Fractionated spacecraft Fractionation is a separation process in which a certain quantity of a mixture (solid, liquid, solute, suspension or isotope) is divided up in a number of smaller quantities (fractions) in which the composition… … Wikipedia
Polymer fractionation — Polymers are chainlike molecules that are made of the same repetition unit. Aside from few exceptions (e.g. proteins) polymers consist of molecules with different chain lengths. Therefore average values are given for the molecular weight like the … Wikipedia
Dole effect — The Dole effect describes an inequality in the ratio of the heavy isotope 18O (a standard oxygen atom with two additional neutrons) to the lighter 16O, measured in the atmosphere and seawater. This ratio is usually denoted δ18O. It was noticed in … Wikipedia
Cohn process — The Cohn process is a series of purification steps with the purpose of extracting albumin from blood plasma. The process is based on the differential solubility of albumin and other plasma proteins based on pH, ethanol concentration, temperature … Wikipedia
Edwin Joseph Cohn — (17 December 1892 ndash; 1 October 1953) was an early protein scientist. A graduate of Phillips Academy, Andover [1911] , and the University of Chicago [1914, PhD 1917] , he made important advances in the physical chemistry of proteins, and was… … Wikipedia
rare-earth element — /rair errth /, Chem. any of a group of closely related metallic elements, comprising the lanthanides, scandium, and yttrium, that are chemically similar by virtue of having the same number of valence electrons. Also called rare earth metal. [1955 … Universalium
Superheated water — is liquid water under pressure at temperatures between the usual boiling point (100°C) and the critical temperature (374°C). It is also known as subcritical water and pressurised hot water. Superheated water referred to in this article is stable… … Wikipedia
Protein precipitation — Precipitation is widely used in downstream processing of biological products, such as proteins. [http://www.rcsb.org/pdb/home/home.do] This unit operation serves to concentrate and fractionate the target product from various contaminants. For… … Wikipedia
Supercritical fluid extraction — (SFE) is the process of separating one component (the extractant) from another (the matrix) using supercritical fluids as the extracting solvent. Extraction is usually from a solid matrix, but can also be from liquids. SFE can be used as a sample … Wikipedia
chromatography — chromatographer, n. chromatographic /kreuh mat euh graf ik, kroh meuh teuh /, adj. chromatographically, adv. /kroh meuh tog reuh fee/, n. Chem. the separation of mixtures into their constituents by preferential adsorption by a solid, as a column… … Universalium
separation and purification — ▪ chemistry Introduction in chemistry, separation of a substance into its components and the removal of impurities. There are a large number of important applications in fields such as medicine and manufacturing. General principles… … Universalium
