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solid column

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  • Column — • Architectural term for a supporting pillar Catholic Encyclopedia. Kevin Knight. 2006. Column     Column     † …   Catholic encyclopedia

  • Column-based nucleic acid purification — is a solid phase extraction method to quickly purify nucleic acids. This method relies on the fact that the nucleic acid may bind (adsorption) to the solid phase (silica or other) depending on the pH and the salt content of the buffer, which may… …   Wikipedia

  • Solid phase extraction — (SPE) is a separation process that is used to remove solid or semi solid compounds from a mixture of impurities based on their physical and chemical properties. Analytical laboratories use solid phase extraction to concentrate and purify samples… …   Wikipedia

  • Solid phase microextraction — Solid phase microextraction, or SPME, is a sample preparation technique used both in the laboratory and on site. Developed in the early 1990s at the University of Waterloo by Dr. Pawliszyn s group, it is a simple and inexpensive technique where… …   Wikipedia

  • Column chromatography — A chemist in the 1950s using column chromatography. The Erlenmeyer receptacles are on the floor. Column chromatography in chemistry is a method used to purify individual chemical compounds from mixtures of compounds. It is often used for… …   Wikipedia

  • column — col|umn W2S2 [ˈkɔləm US ˈka: ] n [Date: 1400 1500; : Old French; Origin: colomne, from Latin columna, from columen top ] 1.) a tall solid upright stone post used to support a building or as a decoration 2.) a line of numbers or words written… …   Dictionary of contemporary English

  • column — noun (C) 1 a tall, solid, upright, stone post used to support a building or as a decoration: a graceful Ionic column 2 a long moving line of people or things: A long, winding column of soldiers marched through the streets. 3 one of two or more… …   Longman dictionary of contemporary English

  • column chromatography — Chromatography Chro ma*tog ra*phy, n. [Gr. ?, ?, color + graphy.] 1. A treatise on colors [archaic] [1913 Webster] 2. (Chem.) an analytical and preparative technique for separating substances by differences in their selective adsorption to solids …   The Collaborative International Dictionary of English

  • column — noun /ˈkɒləm,ˈkɑːləm/ a) A solid upright structure designed usually to support a larger structure above it, such as a roof or horizontal beam, but sometimes for decoration. It was too hard to read the text across the whole page, so I split it… …   Wiktionary

  • column chromatography — Chem. See under chromatography. * * * ▪ chemistry       in analytical chemistry, method for separating mixtures of substances in which a liquid or gaseous solution of the mixture is caused to flow through a tube packed with a finely divided solid …   Universalium

  • UNIVAC Solid State — The UNIVAC Solid State was a 2 address, bi quinary coded decimal computer, with memory on a rotating drum with 5000 signed 10 digit words, spinning at 17,667 RPM in a helium atmosphere. It was announced by Sperry Rand in December 1958, as a… …   Wikipedia

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