Centrifugal concentrators, Vivaspin Turbo 4
The ultrafiltration unit is designed for volumes from 4 ml to 40 µl. Its vertical twin membranes enable fast and high sample concentration and almost complete sample recovery. The integrated dead-stop reservoir prevents the concentrate from being centrifuged until dry. Thanks to the pipette-friendly access, the highly concentrated sample can be easily recovered.Up to 100 times sample concentrationHigh flow rates due to PES membranesCompatible with swing-out and fixed-angle rotorsVolume graduation for easy reading
Centrifugal concentrators Vivacon® 500
Membrane: Hydrosart®. Suitable for the concentration of DNA and proteins. The horizontal membrane design was specially developed for the concentration of linear molecules. With Vivacon® 500, 100 to 500 µl sample volume can be processed in a fixed-angle rotor. Complete sample recovery by reverse spin possible.
Crossflow filter units Vivaflow 50R
Ready-to-use crossflow filter units for protein sample concentration, concentration of culture supernatants, virus and water sample concentration. Single units concentrates 250 ml by a factor of 20 in less than 30 min. For speeding up the concentration, two cassettes can be run simultaneously, therfore the concentration of 1000 ml is achieved in about 45 min.50 cm² filter areasFor volumes 100 - 1000 mlReusableHigh flow rate and recoveryScope of supply:Crossflow filter units, tubing, pressure indicator, flow restrictor
Centrifugal concentrators, Vivaspin Turbo 15 RC
The ultrafiltration unit is designed for volumes from 100 µl up to 15 ml. The membrane is made of regenerated cellulose, the filtrate container of copolymer styrene-butadiene (SBR), housing and screw cap of PP. The vertical twin membranes enable fast and high sample concentration and almost complete sample recovery. The pipette-friendly dead-stop reservoir eliminates the risk of centrifuging the concentrate to dryness and allows easy recovery of the highly concentrated sample. Samples up to 15 ml can be processed in swing-out rotors or 9 ml in fixed-angle rotors, which are suitable for 50 ml centrifuge tubes with a conical bottom.Up to 150 times sample concentrationHigh chemical resistanceVolume graduation for easy reading
Ultra-Micro dialysers QuikPrep® Ultra-Micro DispoDialyzer
Disposable dialyser for processing extremely small samples from 1 to 5 µl. Dialysis is performed in a microcentrifuge tube. Each Ultra-micro dialyser includes two 1.5 ml microcentrifuge collection tubes with lids. After dialysis, the sample can either be removed with a pipette or the dialyser can be inserted into a new microcentrifuge collection tube and briefly centrifuged (500 to 2000 rpm for 1 to 2 seconds). Ideal for buffer exchange, detergent removal, sample concentration for HPLC/HPCE, and purification of proteins, DNA and RNA.Easy handlingLow protein bindingHigh sample recoveryRapid dialysis/purification
Micro dialysers QuikPrep® Micro DispoDialyzer
Disposable dialyser for processing sample volumes from 5 to 100 µl. The entire unit floats directly in the dialysis buffer. To reduce the dialysis time, the dialyser can be placed in a beaker on a magnetic stirrer. After dialysis, the dialyser is placed in a new microcentrifuge collection tube and briefly centrifuged (500 to 2000 rpm for 1 to 2 seconds). Ideal for buffer exchange, detergent removal, sample preparation for HPLC/HPCE/GC/GC-MS/NMR, as well as purification of proteins, DNA and RNA.Easy handlingLeak-proofLow protein bindingHigh sample recoveryRapid dialysis/purificationThe micro dialyser comes with a foam float, cap, and two 1.5 ml collection tubes.
Dialysers QuikPrep® DispoEquilibrium Dialyzer™
The single-use dialyser enables equilibrium dialysis of small sample volumes of 25 to 75 µl and is ideal for binding and interaction studies.Made of inert PTFEHigh sample recoveryEasy handlingLeak-proofRapid dialysis thanks to ultra-thin membraneThe dialyser comes with with two caps (1 x black, 1 x white), two 0.65 ml sample tubes and two pipette tips for sample delivery and recovery.
Dialysers QuikPrep®
These single-sided, reusable dialysers are suitable for the dialysis of biological samples. Ideal for the simple dialysis of salts, buffer exchange, and sample concentration in sample preparation.AutoclavableMade of inert PTFELow protein bindingHigh sample recoverySingle-sided dialysers are sold with chamber and cap.
Dialysers with magnetic stir bar QuikPrep® SpinDialyzer, single-sided chamber
Reusable, leak-proof dialysers with internal magnetic stir bars. The entire dialyser unit can be rotated during dialysis using a magnetic stirrer, which reduces the dialysis time. Ideal for buffer exchange, detergent removal, sample preparation for HPLC/HPCE/GC/GC-MS/NMR, as well as purification of proteins, DNA and RNA.AutoclavableMade of inert PTFERapid dialysis/purificationLow protein bindingHigh sample recoveryDialysers SpinDialyzer are sold with a single-sided chamber and cap.
Dialysers with magnetic stir bar QuikPrep® Fast SpinDialyzer, two-sided chamber
Reusable, leak-proof dialysers with internal magnetic stir bars. The entire dialyser unit can be rotated during dialysis using a magnetic stirrer, which reduces the dialysis time. Ideal for buffer exchange, detergent removal, sample preparation for HPLC/HPCE/GC/GC-MS/NMR, as well as purification of proteins, DNA and RNA.AutoclavableMade of inert PTFERapid dialysis/purificationLow protein bindingHigh sample recoveryDialysers Fast SpinDialyzer are sold with a two-sided chamber and two caps.
96-well dialyser QuikPrep® DispoDialyzer
For the simultaneous preparation of 96 samples with a sample volume of 25 to 300 µl. Each cavity has its own membrane to prevent cross-contamination between the wells. The entire plate floats directly in the dialysis buffer and enables rapid dialysis. Each plate comes with twelve 8-well cap strips to ensure a tight seal of the cavities. Ideal for salt removal, oligonucleotide purification, detergent removal, and sample preparation for HPLC/HPLC-MS.High recovery (=95 %)96-well format for high throughputHigh reproducibilityBuilt-in regenerated cellulose membranes of high qualityMembranes are free from sulphur and heavy metal contamination
TFF cassettes Vivaflow® SU, individual run
Tangential flow filtration (TFF) cassettes for ultrafiltration and diafiltration of medium sample volumes. Specially designed for applications in research and development laboratories. High-performance membranes with a membrane area of 50 cm2 ensure maximum recovery. No flushing or cleaning required.For the individual run of a cassette with a volume of 100 to 500 ml.Scope of supply: 2 x cassettes, 2 x feed tubing, 2 x permeate tubing, 2 x pressure indicator, 2 x retentate tubing with restrictor
TFF cassettes Vivaflow® SU, serial run
Tangential flow filtration (TFF) cassettes for ultrafiltration and diafiltration of medium sample volumes. Specially designed for applications in research and development laboratories. High-performance membranes with a membrane area of 50 cm2 ensure maximum recovery. No flushing or cleaning required.For the serial run of both cassettes with 500 to 1000 ml volume.Scope of supply: 2 x cassettes, 1 x feed tubing, 1 x serial connector, 2 x permeate tubing, 1 x pressure indicator, 1 x retentate tubing with restrictor
TFF cassettes Vivaflow® SU, individual run, 0.2 µm
Tangential flow filtration (TFF) cassettes for ultrafiltration and diafiltration of medium sample volumes. Specially designed for applications in research and development laboratories. High-performance membranes with a membrane area of 50 cm2 ensure maximum recovery. No flushing or cleaning required.For the individual run of a cassette with a volume of 100 to 500 ml.Scope of supply: 2 x cassettes, 2 x feed tubing, 2 x permeate tubing, 2 x pressure indicator, 2 x retentate tubing with restrictor
TFF cassettes Vivaflow® SU, serial run, 0.2 µm
Tangential flow filtration (TFF) cassettes for ultrafiltration and diafiltration of medium sample volumes. Specially designed for applications in research and development laboratories. High-performance membranes with a membrane area of 50 cm2 ensure maximum recovery. No flushing or cleaning required.For the serial run of both cassettes with 500 to 1000 ml volume.Scope of supply: 2 x cassettes, 1 x feed tubing, 1 x serial connector, 2 x permeate tubing, 1 x pressure indicator, 1 x retentate tubing with restrictor
Peristaltic pump for TFF cassettes
Peristaltic pump for pumping liquids and processing samples with Vivaflow® tangential flow filtration cassettes (TFF) and Sartobind® chromatography consumables. These pumps are designed for ultrafiltration, diafiltration, and purification. The digital control ensures a constant flow. A reversible variable speed motor allows precise flow control in both directions. Tube loading into the separately available pump heads is quick and easy.Please order pump heads and TFF cassettes separately.
Pump heads for peristaltic pump for TFF cassettes
The pump heads can be easily attached to the peristaltic pump and are compatible with several internal tube diameters. Tube loading is quick and easy.
Flow restrictor set
Set consisting of a blue and green flow restrictor. The blue flow restrictor can increase the filtration rate, while the green flow restrictor can be useful when handling high-viscosity feeds or to reduce shear stress on aggregation-prone molecules.
Sample and diafiltration reservoir
Sample and diafiltration reservoir for Vivaflow® systems. For easy application of samples and the continuous replacement of buffer.
Dialysis Tubing Biotech Cellulose Ester (CE)
Biologically inert and ultra-pure, Biotech CE is available in the largest selection of concise MWCOs (0.1 to 1000 kD) and sizes to provide better molecular separation for desalting, isolating ionic species and macromolecular purifications. Moderate chemical compatibility tolerates weak or dilute acids or bases and mild alcohols with only a slight change to the MWCO. Not for use with organic solvents. Use with pH 2 to 9 and temperature 4 to 37 °C.
Centrifugal concentrators, Vivaspin 500
Membrane: polyethersulphone. Compatible with swing-out and fixed-angle rotors. The vertical, built-in membrane guarantees minimal membrane fouling and provides rapid sample concentration. Low protein adsorption gives minimal sample loss.
Centrifugal filter units Amicon® Ultra-4
For concentration of biological samples, purification, desalination and buffer exchange.Ultracel regenerated cellulose membraneVertical membrane for fast spin timesHigh recoveriesConcentration factor 80 x to 100 xScope of supply: Filter unit, centrifuge tube, capSample volume:4 mlMembrane area:3 cm²Max. centrifugal force (swing-out rotor):4000 x gMax. centrifugal force (fixed-angle rotor):7500 x g /
5000 x g (at 100K)
Dialysis tubing closures Spectra/Por, PP
Standard and Weighted Spectra/Por Closures provide a leak-proof seal for dialysis tubing while aiding in sample buoyancy and vertical orientation. They are available in 23, 35, 55, 75 and 90 mm sealing widths and a variety of colors for easy sample identification. Closures are autoclavable.Clips for Biotech membranes available on request.
Centrifugal concentrators Vivaspin 15R
Membrane: Hydrosart®. With Vivaspin 15R, 2 to 15 ml volumes can be processed in either a swing-out or fixed-angle rotor. The concentrator features very high sample recovery and low adsorption.
Centrifugal filter units Amicon® Ultra-15
For concentration of biological samples, purification, desalination and buffer exchange.Ultracel regenerated cellulose membraneVertical membrane for fast spin timesHigh recoveriesConcentration factor 80 x to 100 xScope of supply: Filter unit, centrifuge tube, capSample volume:15 mlMembrane area:7,6 cm²Max. RCF (swing-out rotor):4000 x gMax. RCF (fixed-angle rotor):5000 x g
Centrifugal concentrators, Vivaspin 2, Hydrosart®
This 2 ml volume unit combines the rapidity of the classic Vivaspin products with reduced internal surface and membrane areas for superior recoveries from very dilute solutions. With a choice of suitable membranes Vivaspin 2 provides the highest flexibility for process optimisation. Vivaspin 2 guarantees maximum sample recovery either by reverse centrifuging into the concentrate recovery cap or by directly pipetting the concentrate from the deadstop pocket built into the bottom of the concentrator.This 2 ml volume unit combines the rapidity of the classic Vivaspin products with reduced internal surface and membrane areas for superior recoveries from very dilute solutions. With a choice of suitable membranes Vivaspin 2 provides the highest flexibility for process optimisation. Vivaspin 2 guarantees maximum sample recovery either by reverse centrifuging into the concentrate recovery cap or by directly pipetting the concentrate from the deadstop pocket built into the bottom of the concentrator.
Centrifugal unit / concentrator Vivaspin 6
Membrane: polyethersulphone. Vivaspin 6ml concentrators have been developed to offer increased volume flexibility and performance. Vivaspin 6 can process an impressive 6ml in either swing-out buckets or fixed angle rotors accepting standard 15 ml conical bottom test tubes. The Vivaspin 6 features twin vertical membranes for unparalleled filtration speeds and 100x plus concentrations.
Centrifugal filter units Centricon® Plus-70
For protein extraction, protein purification, sample preparation.50 x to 200 x sample concentrationCompatible with swing-out rotorsDeadstop prevents spinning to drynessVolume:15 to 70 mlMembrane:Regenerated celluloseFiltration area:19 cm²Max. rcf swing-out rotor:3500 x gHold-up volume:75 µl
Centrifugal filter units Amicon® Ultra-0,5
For concentration of biological samples, purification, desalination and buffer exchange.Ultracel regenerated cellulose membraneFast processing timeHigh recoveriesConcentration factor 25 x to 30 xScope of supply: Filter unit, two microcentrifuge tubesSample volume:0,5 mlMembrane area:1 cm²Max. RCF:15000 x g
Crossflow filter units Vivaflow 200
Thin channel, crossflow filter units. This system provides high crossflow rates at minimum pumping pressure and does not require additional fittings for scale-up. Modular construction with luer connections allows interlocking of units in series for easy scale-up. Recovery rates are maximised due to optimised recirculation volume and by use of low adsorption materials.Scope of supply: crossflow filter unit, pressure indicator, flow restrictor, tubing
Dialysis Device Float-A-Lyzer G2
Ready-to-use dialysis device with screw cap for ultimate convenience for small volume dialysis. Easy loading and recovery. No needles, closures, knots, buoys, pontoons, or weights required. Made with Biotech CE membrane in 9 MWCO's (0.1 to 1000 kD) and 3 volume sizes (1, 5 and 10 ml).
Centrifugal concentrators, Vivaspin Turbo 15
The ultrafiltration unit is designed for volumes from 15 ml - 100 µl. The vertical twin membranes enable fast and high sample concentration and almost complete sample recovery. The pipette-friendly dead-stop reservoir eliminates the risk of centrifuging the concentrate to dryness and allows easy recovery of the highly concentrated sample. Samples up to 15 ml can be processed in swing-out rotors or 9 ml in fixed-angle rotors, which are suitable for 50 ml centrifuge tubes with a conical bottom.Up to 100 times sample concentrationHigh flow rates due to PES membranesVolume graduation for easy reading