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UFC8050
Amicon® Ultra-4 Centrifugal Filter Unit
Ultracel-50 regenerated cellulose membrane, 4 mL sample volume
All Photos(1)
Synonym(s):
Centrifugal concentrator, 50 kDa MWCO, 4 mL sample volume
eCl@ss:
36100101
NACRES:
NB.24
Quality Level
material
polyethylene cap
polyethylene liner
polypropylene tube
regenerated cellulose membrane
regenerated cellulose support
styrene-butadiene housing
sterility
non-sterile
product line
Amicon®
manufacturer/tradename
Amicon® Ultra
parameter
4 mL sample volume
technique(s)
protein extraction: suitable
protein purification: suitable
L
124 mm (4.88 in.)
diam.
17.3 mm
filtration area
3 cm2
pore size
50 kDa NMWCO
shipped in
ambient
General description
Amicon® Ultra 4 mL centrifugal devices with Ultracel® 50,000 Dalton molecular weight cutoff filters provide fast ultrafiltration, and reliable retention of macromolecules. For example,BSA (67 kDa) at 1 mg/ml initial concentration is retained at >95% .
The vertical design and available membrane surface area provide fast sample processing, high sample recovery (typically greater than 90% of dilute starting solution), and the capability for 80-fold concentration. Solute polarization and subsequent fouling of the membrane are minimized by the vertical design, and a physical deadstop in the filter device prevents spinning to dryness and potential sample loss.
The concentrate is collected from the filter device sample reservoir using a pipetter, while the ultrafiltrate is collected in the provided centrifuge tube. The device can be spun in a swinging bucket or fixed angle rotor. With their vertical membrane design and deadstop, Amicon® Ultra 15 mL filters deliver the highest recovery with short spin times.
The vertical design and available membrane surface area provide fast sample processing, high sample recovery (typically greater than 90% of dilute starting solution), and the capability for 80-fold concentration. Solute polarization and subsequent fouling of the membrane are minimized by the vertical design, and a physical deadstop in the filter device prevents spinning to dryness and potential sample loss.
The concentrate is collected from the filter device sample reservoir using a pipetter, while the ultrafiltrate is collected in the provided centrifuge tube. The device can be spun in a swinging bucket or fixed angle rotor. With their vertical membrane design and deadstop, Amicon® Ultra 15 mL filters deliver the highest recovery with short spin times.
Application
- Ultrafiltration with 50,000 Dalton molecular weight cutoff Ultracel® membrane.
- Concentration of biological samples containing antigens, antibodies, enzymes, nucleic acids, or microorganisms.
- Purification of macromolecular components found in tissue culture extracts or cell lysates and protein removal prior to HPLC.
- Concentration of dilute or pre-purified proteins from column eluents.
- Desalting, buffer exchange and protein dialysis.
- Size exclusion and protein fractionation.
Features and Benefits
- Ultracel® regenerated cellulose membrane with 50 kDa NMWCO delivers retentate recovery of greater than 90%.
- Vertical membrane reduces concentration polarization for ultra-fast spin times (as fast as 5 minutes).
- Heat-sealed membrane minimizes downstream extractables.
- 100% integrity tested for reliable performance.
- Convenient sample monitoring with translucent housing and volume gradations.
- Direct pipette sample access eliminates processing step to recover concentrate.
- High concentration factors of 80–100X.
Physical form
Color Code: Clear with pink cap
Legal Information
Amicon is a registered trademark of Merck KGaA, Darmstadt, Germany
ULTRACEL is a registered trademark of Merck KGaA, Darmstadt, Germany
Certificate of Analysis
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Certificate of Quality
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