Vivaspin are the optimal solution for any concentration or buffer exchange application covering volumes from 100 µl up to 20 ml for fast and safe sample treatment. The patented vertical membrane design and thin channel filtration chamber minimizes membrane fouling and provides high speed concentrations. Recovery rates of > 90%.
Membrane options include a high flux Polyethersulfone (PES); Hydrosart® modified regenerated cellulose membrane (HY) for extremely low protein binding; and Cellulose Triacetate (CtA) with high hydrophilicity and very low non specific binding.
Vivaspin 2: Sample concentration from 400 µl to 2ml in swing bucket or fixed angle rotors accepting 15 ml centrifuge tubes. Available in PES, CtA, and Hydrosart modified regenerated cellulose membrane (HY) for extremely low protein binding