centrifugation


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Related to centrifugation: Differential centrifugation

centrifugation

 [sen-trif″u-ga´shun]
the process of separating lighter portions of a solution, mixture, or suspension from the heavier portions by centrifugal force.

cen·trif·u·ga·tion

(sen-trif'yū-gā'shŭn),
Subjection to sedimentation, by means of a centrifuge, of solids suspended in a fluid.
Synonym(s): centrifugalization

centrifugation

/cen·trif·u·ga·tion/ (sen-trif″u-ga´shun) the process of separating lighter portions of a solution, mixture, or suspension from the heavier portions by centrifugal force.

centrifugation

Lab technology The process of separating fractions of systems in a centrifuge. See Axial centrifugation, Density gradient centrifugation, Ultracentrifugation.

cen·trif·u·ga·tion

(sen-trif'ŭ-gā'shŭn)
Sedimentation, by means of a centrifuge, of solids suspended in a fluid. After the process, supernatant fluid and sediment are separated.

centrifugation

a process in which particles in suspension are subjected to centrifugal forces by being spun in a CENTRIFUGE, so forming a sediment. Subsequent removal of the SUPERNATANT fluid from the sediment and subjecting it to higher speeds of centrifugation can enable particles of different sizes to be separated out and collected. Eventually the supernatant fluid will contain only soluble materials. In some types of centrifugation, the sample is layered on to a column of liquid (such as sucrose) of increasing concentration down the column, and centrifuged until bands are formed. In this way the molecules are separated by their different rates of sedimentation. see DIFFERENTIAL CENTRIFUGATION, ULTRACENTRIFUGE.

centrifugation (sen·trifˈ·y·gāˑ·shn),

n the process by which substances are separated by cen-trifugal force to increase the rate of filtration or sedimentation of two immiscible liquids or a liquid and a solid.

centrifugation

the process of separating lighter portions of a solution, mixture or suspension from the heavier portions by centrifugal force.

density gradient centrifugation
a procedure for separating particles such as viruses or ribosomes or molecules such as DNA in which the sample is placed on a preformed gradient such as sucrose or cesium chloride. Upon centrifugation either by rate zonal or equilibrium procedures, the macromolecules are 'banded' in the gradient and can be collected as a pure fraction.
References in periodicals archive ?
This study was conducted to determine whether statistical differences occurred in plasma biochemical values that resulted from plasma obtained after high-speed centrifugation versus standard centrifugation.
These centrifugation parameters are consistent with recommendations by the manufacturer of this system, and are representative of our routine sample processing laboratory protocol.
Susceptibility to heparin-mediated cell membrane damage during processing and centrifugation may have contributed to diffusion of potassium into the supernatant from ruptured leukocytes.
The centrifugation time was kept 180 s and the composition profiles of samples having lengths 10, 20, and 30 mm were compared in Fig.
Thomas Wake and his colleagues are using the facility to compare the effectiveness of self-cleaning screens, centrifugation, and a filtration system composed of fine-grain sand.
Centrifugation at a force of only 3,000 x g reduced endospore numbers in skim milk and whole milk by more than 60%.
The analysts forecast the Global Sedimentation and Centrifugation market to grow at a CAGR of 5.
Isolation protocols that use high-speed centrifugation or excessive vortexing may sheer DNA, thus disrupting potential PCR amplification targets.
Short in-laboratory turnaround time is important, and reducing centrifugation time can shorten this phase of the preanalytical process.
A 15-minute centrifugation step at 1,000 x g increased the efficacy of infection by a factor of 10 compared with regular infection at 37[degrees]C (data not shown).
Peripheral blood mononuclear cells (PBMCs) were separated by Ficoll-Hypaque density gradient centrifugation from fresh heparinized blood collected by venipuncture from healthy, nontransfused consenting volunteers, as previously described (Boyum 1968; Waldman et al.
Designed for the separation of solids and liquids, the Model RC 30 VxR and the Model RC 40 VxR offer fully contained centrifugation of cytotoxic and other highly potent compounds.