Ultra Filtration Devices

Ultrafiltration devices for concentration and buffer exchange / desalting of proteins, DNA, viruses and other biological samples in laboratory scale from 0.1 ml to 5 l sample volume. All product groups have unique features and operation modes to be optimally equipped for the sample processing in their volume range.

Centrifugal Ultrafiltration Devices

Centrifugal Ultrafiltration Devices
Centrifugal ultrafiltration devices for concentration and buffer exchange / desalting of proteins, DNA, viruses and other biological samples. Sartorius Stedim Biotech offers a choice of thirteen different centrifugal ultrafiltration devices covering sample volumes from 100 µl up to 100 ml with MWCOs from 3 kDa to over 1000 kDa for fast and safe sample processing.
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Static Concentrators

Static Concentrators
Static concentrators for fast and economic concentration of body liquids like urine and cerebrospinal fluid prior to analysis by electrophoresis or immunoelectrophoresis (e.g. Bence Jones proteins in urine). An absorbent pulls solvent and salts through the ultrafiltration membrane, concentrating the sample.
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Pressure Driven Ultrafiltration Devices

Pressure Driven Ultrafiltration Devices
Pressure driven ultrafiltration devices for concentration and buffer exchange / desalting of proteins, DNA, viruses and other biological samples. Sartorius Stedim Biotech offers a line of pressure driven ultrafiltration devices covering sample volumes from 10 ml up to 250 ml, for fast, safe and mild sample concentration.
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Ultrafilter Membrane Discs

Ultrafilter Membrane Discs
Ultrafiltration membrane discs for sample concentration in e.g. stirred cells, available in 3 different materials: Polyethersulfone (PES) with high flux, no hydrophobic or hydrophilic interactions and low fouling characteristics, cellulosetriacetate (CTA) for high hydrophilicity and high ultrafiltrate recovery and Hydrosart® regenerated cellulose for extremely low protein binding and extended chemical resistance.
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Tangential | Crossflow Concentrators

Tangential | Crossflow Concentrators
Disposable and reusable tangential | crossflow cassettes for concentration, diafiltration and buffer exchange of biological samples and nanoparticles from 0.1 – 5 l with MWCOs from 3 kDa to 1,000 kDa. Available with PES and Hydrosart® ultrafiltration membranes, Vivaflow 50 and 200 are the only dedicated laboratory crossflow cassettes in the market. Our tangential | crossflow concentrators are simple to set up and can…