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  • Accessories
  • Now 25 years in business, Norlab is a specialist supplier of Separation Science & Dissolution Instruments and Accessories, Laboratory Fluid Handling Solutions and more. (norlab.fi)
  • stationary phase
  • The mixture is dissolved in a fluid called the mobile phase, which carries it through a structure holding another material called the stationary phase. (wikipedia.org)
  • The mobile phase moves through the chromatography column (the stationary phase) where the sample interacts with the stationary phase and is separated. (wikipedia.org)
  • Hydrodynamic instruments are often marketed as high-speed or high-performance countercurrent chromatography (HSCCC and HPCCC respectively) instruments which rely on the Archimedes' screw force in a helical coil to retain the stationary phase in the column. (wikipedia.org)
  • Nearly any pair of immiscible solutions can be used in countercurrent chromatography provided that the stationary phase can be successfully retained. (wikipedia.org)
  • high temperature
  • This has been an exciting field with a long history since 1822 when Baron Charles Cagniard de la Tour discovered supercritical fluids while conducting experiments involving the discontinuities of the sound in a sealed cannon barrel filled with various fluids at high temperature. (wikipedia.org)
  • chemistry
  • Chromatography technique developed substantially as a result of the work of Archer John Porter Martin and Richard Laurence Millington Synge during the 1940s and 1950s, for which they won the 1952 Nobel Prize in Chemistry. (wikipedia.org)
  • Interchim has now major activity in fine chromatography, fine chemistry and bio-analysis. (wikipedia.org)
  • properties
  • Whereas liquids are nearly incompressible, so their densities are constant regardless of pressure, supercritical fluids are highly compressible and their physical properties change with pressure - such as the pressure drop across a packed-bed column. (wikipedia.org)
  • One of the most important properties is the solubility of material in the fluid. (wikipedia.org)
  • chemical
  • The company's first major break came when Dow Chemical bought one of Waters' first gel permeation chromatography instruments, Dow Chemical made an additional investment of $400,000. (wikipedia.org)
  • It is used to separate one chemical compound or one class of chemical compounds from one or more other chemical compounds to provide significant quantities of the purified or enriched material at a lower cost than could be obtained using simple (batch) chromatography. (wikipedia.org)
  • form
  • Bob Brownlee took the initiative "along with Tom Jupille, Steve Bakalyar, Nelson Cooke, Jerry Higgins and Ron Majors" to form the Bay Area Chromatography Colloquium. (wikipedia.org)