precipitation fractionation

См. также в других словарях:

• fractionation — 1. To separate components of a mixture. 2. The administration of a course of therapeutic radiation of a neoplasm in a planned series of fractions of the total dose, most often once a day for several weeks, in order to minimize radiation damage of …   Medical dictionary

• 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

• isotopic fractionation — ▪ chemistry       enrichment of one isotope relative to another in a chemical or physical process. Two isotopes of an element are different in weight but not in gross chemical properties, which are determined by the number of electrons. However,… …   Universalium

• industrial process — noun a systematic series of mechanical or chemical operations that produce or manufacture something • Hypernyms: ↑process, ↑physical process • Hyponyms: ↑Acheson process, ↑Bessemer process, ↑cyanide process, ↑electrostatic preci …   Useful english dictionary

• 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

• 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

• Isotope-ratio mass spectrometry — Isotope ratio mass spectrometer with gas bench in foreground Acronym IRMS Classification mass spectrometry Other techniques …   Wikipedia

• δ18O — Foraminifera samples …   Wikipedia

• Paleothermometer — A paleothermometer is a methodology for determining past temperatures using a proxy found in a natural record such as a sediment, ice core, tree rings or TEX86.Common paleothermometersd18oThe ratio of 18o to 16o, usually in foram tests or ice… …   Wikipedia

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• Dielectrophoresis — (or DEP) is a phenomenon in which a force is exerted on a dielectric particle when it is subjected to a non uniform electric field.[1][2][3][4][5] This force does not require the particle to be …   Wikipedia