Blood fractionation

Blood fractionation

Blood fractionation is the process of fractionating the blood - that is, of separating it into its component parts: erythrocytes (or "red blood cells"), blood plasma, and platelets. The first practical large-scale method of blood fractionation was developed by Edwin J. Cohn during the Second World War.Also known as plasma fractionation or the Cohn method.

the whole blood can be cetrifuged to get a clear suspension of "plasma" in the upper phase, the WBC's in the middle buffy coat and the erythrocytes in the bottom.


Wikimedia Foundation. 2010.

Игры ⚽ Поможем сделать НИР

Look at other dictionaries:

  • Blood plasma — is the straw colored liquid component of blood in which the blood cells in whole blood are normally suspended. It makes up about 55% of the total blood volume. It is the intravascular fluid part of extracellular fluid (all body fluid outside of… …   Wikipedia

  • Blood donation — Give blood redirects here. For other uses, see Give blood (disambiguation). Blood donation pictogram A blood donation occurs when a person voluntarily has blood drawn and used for transfusions or made into medications by a process called… …   Wikipedia

  • 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

  • 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

  • Blood bank — A blood bank is a cache or bank of blood or blood components, gathered as a result of blood donation, stored and preserved for later use in blood transfusions.Transfusion serviceMost hospital blood banks also perform the testing to determine the… …   Wikipedia

  • Chromatography in blood processing — Chromatographic techniques have been used in blood processing and purification since the 1980s. It has emerged as an effective method of purifying blood components for therapeutic use. Contents 1 Human blood plasma 2 Development of chromatography …   Wikipedia

  • Dose fractionation — Experiments in radiation biology have found that as the absorbed dose of radiation increases, the number of cells which survive decreases. They have also found that if the radiation is fractionated into smaller doses, with one or more rest… …   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

  • John Tileston Edsall — (3 November 1902 12 June 2002) was anearly protein scientist, who contributed significantly to the understanding of the hydrophobic interaction.Early lifeBorn in Philadelphia, John Edsall moved to Boston with his family at the age of 10. Protein… …   Wikipedia

Share the article and excerpts

Direct link
Do a right-click on the link above
and select “Copy Link”