Nonsterile centrifugal concentrators provide a simple, one-step procedure for concentrating or desalting proteins and other biomolecules with 90% or better recovery. The unique vertical membrane design and thin channel filtration chamber minimizes membrane fouling and provides fast, high-speed concentrating, even with particle-laden solutions. Integrated dead stop design reduces risk of spinning to dryness; no respinning necessary. Other applications include removal of labeled amino acids and nucleotides, HPLC sample preparation, deproteinization of samples, recovery of biomolecules from cell culture supernatants and lysates, and concentrating virus from cell culture supernatents.
Low binding polyethersulfone (PES) membranes are available with five molecular weight cut-offs (MWCO) to meet all concentration needs. Choose an MWCO 1/2 to 1/3 smaller than the protein to be concentrated. MWCO and graduations are printed on the side of the concentrator tube.
Ordering Information: Spin-X® UF 6 and 20 concentrators can be used with either the swinging bucket or fixed angle rotors. Spin-X® UF 500 concentrators require fixed angle rotors. Spin-X® UF 20 concentrators have a capacity of 14mL if using fixed angle rotors.