supernatant

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supernatant

 [soo″per-na´tant]
the liquid lying above a layer of precipitated insoluble material.

su·per·na·tant flu·id

clear fluid that, after the settling out of an insoluble liquid or solid by the action of normal gravity or of centrifugal force, takes up the upper portion of the contents of a vessel.

supernatant

/su·per·na·tant/ (-na´tant) the liquid lying above a layer of precipitated insoluble material.

supernatant

[-nā′tənt]
Etymology: L, super + natare, to swim
1 adj, situated above or on top of something.
2 n, the clear upper liquid part of a mixture (a liquid and a solid) after it has been centrifuged.

supernatant

Floating on the surface.

supernatant

the clear liquid above a precipitate which has settled out.

supernatant

the liquid lying above a layer of precipitated insoluble material.
References in periodicals archive ?
The reaction was started by the addition of lung-soluble supernate (cytosol), and the increase in absorbance was measured spectrophotometrically at 340 nm using a Shimadzu UV-2401 PC spectrophotometer (Shimadzu, Columbia, MD).
2], (46 mmol/L), and the supernate containing HDL is recovered by low-speed centrifugation.
5 mL of sample (UC 1 or UC 2 diluted 1:5 with saline/azide) or protein calibrator (A/G or UPL at 100 mg/L), and the mixture was centrifuged at 2500g for 5 min before removal of the supernate and resolubilization of the pellet in 1 mL of 0.
In the chemical precipitation methods, the precipitation steps for prior isolation of HDL were done manually, whereas the cholesterol in the supernates was measured on automated clinical chemistry analyzers.
The apo B-containing lipoproteins were sedimented by centrifugation (5 min), and the cholesterol content was measured in the supernate with the CHOD-PAP method.
The abnormal precipitin arcs for albumin disappeared when antisera specific for human albumin or IgA ([alpha]-chain specific) were incubated for 37[degrees]C for 30 min with the purified IgA-type M-protein (at a ratio of 6:1 by volume) and supernates were concentrated by ultrafiltration.
MD Biosciences, a global biotechnology company focused in inflammations and neurology research, announces the recent launch of its new Human Type I Collagen (CI) ELISA, Catalog # M036007, for use with cell culture supernates.
After incubation, tissue suspensions were centrifuged at 1500 x gravity (g) for 10 min, supernates were aspirated to waste, and pellets were resuspended in 1-35 mL of 2 M sodium hydroxide, depending on pellet volume.
The protein contents in supernates were determined using Sigma Diagnostic reagents and procedures (Sigma Chemical Co.
For studies using the COBAS instruments, supernates from the magnetic particle-treated samples were analyzed on a COBAS MIRA analyzer (Roche Diagnostics) with serum iron reagents from Thereto-DMA, Inc.
All supernates were combined and centrifuged at 40 OOOg for 30 min.