• For scientists and lab technicians who need to quickly and safely concentrate biological samples of 4ml to 15ml up to 150-fold. • Can handle up to 15ml sample volume in swing bucket rotors and 11ml in fixed angle rotors accepting 50ml centrifuge tubes. • Ultra-filtration is a non-denaturing method that is more efficient, flexible and gentle than alternative processes. • In a single spin, 15ml solutions can be concentrated up to 150X. • The fastest sample concentration with highest recoveries. • Offers the optimal solution to any concentration or buffer exchange application with its broad range of MWCO’s. • Applications include sample concentration (protein, lipid, virus, nanoparticle, macromolecule), desalting/dialysis and rebuffering. • Highest flow rates are achieved due to their twin vertical membranes which minimize protein polarization and subsequent fouling of the membrane. • Sleek internal profile ensures maximum process speeds right down to the last 100µl. • Samples can be typically concentrated in 10 to 30 minutes with macromolecular recoveries in excess of 95%. • Polyethersulfone membranes are preferred for their low fouling characteristics, exceptional flux and broad pH range compatibility. • Centrifugation provides the vector to clear solvent and micro molecules through an ultra-filtration membrane to separate macro-molecular species and solvents primarily on the basis of size. • Particularly appropriate for the concentration of macromolecules. Can also be used to purify molecular species or for solvent exchange. • The UV joining technology allows for a smooth joint transition between membrane and plastic housing, allowing the sample to be collected into the unique pipette-friendly dead-stop pocket. The 100µl dead stop pocket is easy to access with standard 200µl pipette tips. • It eliminates the risk of the sample running to dryness while allowing highest recovery of the concentrate. • The combination of polyethersulfone (PES), polystyrene and polypropylene (PP) allows sterilization and depyrogenization. • Universal rotor compatibility. • Volume graduation for easy detection/monitoring of the concentrate volume. • Made of styrene butadiene copolymer, with a polypropylene filtrate vessel, polypropylene concentrator cap and polyethersulfone (PES) membrane. • Dimensions: Total length (concentrator insert) 77mm; Total length (in tube with cap) 118mm; Diameter (concentrator insert) 27mm. • Active membrane area: 7.2cm2. • Hold up volume of membrane: <10µl. • Dead stop volume in swing out: 100µl. • Dead stop volume in fixed angle: 60µl. • Maximum speed: 4000 x g. • Sterilization: ETO or 70% EtOH.
NOTE: Vivaspin® Turbo 15 (30mm x 118mm) is designed to fit into rotors that can accommodate Falcon 50ml conical bottom tubes. These devices are not designed to fit into rotors that only accept round bottom 29mm x 105mm tubes. If your rotor accepts only 29mm x 105mm round bottom tubes, please use the Vivaspin® 15, which can be used in either round bottom or conical centrifuge tubes.