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ultracentrifugation

ultracentrifugation Centrifugation carried out at high rotor speeds (up to 75 000 rpm) and therefore under high centrifugal forces (up to 750 000 g). Analytical ultracentrifuges are employed to determine the mass and to some extent the shape of molecules; preparative ultracentrifuges are used to separate the components of mixtures on the bases of these parameters.

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	Aviv Biomedical will sell and install its Fluorescence Detection System.(Laboratory Products: Company Announcements) Newspaper article from: Instrument Business Outlook; 5/15/2008; 23 words ; Aviv Biomedical will sell and install its Fluorescence Detection System on fielded Beckman Coulter ProteomeLab XL-A, XL-I analytical ultracentrifuges. Read more
	Market Profile: Analytical Centrifuges.(Brief Article) Newspaper article from: Instrument Business Outlook; 4/30/2001; 275 words ; ...experiments. However, advances in data analysis software, design and technology have spurred an increase in the use of AU. Analytical ultracentrifuges are stand-alone systems that dwarf the bench-top centrifuges in terms of size and power. The instruments rotate solutions... Read more
	Market profile: analytical ultracentrifuges. Newspaper article from: Instrument Business Outlook; 2/28/2005; 472 words ; Although analytical ultracentrifugation has not been a beneficiary of breakthrough technology in recent years, the instrument has recently received increased attention from suppliers and end-users. The distinguishing element of ultracentrifuges from other centrifuges is the revolutions per minute Read more
	Axial flow characteristics within a screw compressor.(Technical report) Magazine article from: HVAC & R Research; 3/1/2008; ; 700+ words ; ...of the male rotor of a screw compressor with high spatial and temporal resolution using laser Doppler velocimetry at two rotor speeds, 750 and 1000 rpm. Measurements were performed through a transparent window near the discharge port to allow the application... Read more
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Related entries from encyclopedias, dictionaries, and thesauruses

	ultracentrifugation Book article from: A Dictionary of Plant Sciences ultracentrifugation Centrifugation carried out at high rotor speeds (up to 75 000 rpm) and therefore under high centrifugal forces (up to 750 000 g... Read more
	satellite DNA Book article from: A Dictionary of Zoology ...separates from the bulk of DNA when native DNA is separated according to density in a solution of caesium chloride following ultracentrifugation . The caesium chloride forms a density gradient and the DNA settles out where its density equals that of the solution... Read more
	Cholesterol Test Encyclopedia entry from: Encyclopedia of Public Health ...include total cholesterol, LDL cholesterol, HDL cholesterol, and triglycerides. Originally, this was done by a lengthy ultracentrifugation of serum or plasma, which created zones of particles with different densities. More recently the process has been automated... Read more
	Separation and Purification of Biomolecules Book article from: Biology ...purification methods are chromatography, electrophoresis, and ultracentrifugation. Each one relies on certain physicochemical properties...identification, sequencing, or further manipulation. Ultracentrifugation Cells, organelles , or macromolecules in solution exposed... Read more
	VLDL Cholesterol Encyclopedia entry from: Encyclopedia of Public Health ...the more important LDL cholesterol. Originally, LDL cholesterol was determined by a lengthy, laborious process called ultracentrifugation of serum. A much more rapid test became available based on the following Friedwald equation: Total cholesterol = LDL... Read more

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