Sartorius™ Vivaspin™ 2 Centrifugal Concentrators: PES Membrane Available on GSA/VA Contract for Federal Government customers only.

Combines high speed with superior retentate recovery for concentrating very dilute solutions. Sartorius™ Vivaspin™ 2 Centrifugal Concentrators: PES Membrane feature twin vertical membranes, small internal surface areas and thin-channel chambers. Available in a range of MWCO and packaging quantities.

Manufacturer: Sartorius™ VS0221

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Catalog No. 14-558-421

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    Disposable Yes
    Membrane Material Polyethersulfone
    For Use With (Application) Concentration, desalting and buffer applications
    Housing Material Polycarbonate
    Length (Metric) 126mm
    Max. Force Swing bucket rotor: 4,000 x g
    Fixed angle rotor: 9,000 x g (3 - 50kDa MWCO); 12,000 x g (100kDa+ MWCO)
    MWCO 30,000 d
    Quantity 25/Pk.
    Surface Area 1.3cm2
    Volume (Metric) 2mL (Fixed Angle Rotor); 3mL (Swing Bucket Rotor)
    Width (Metric) 17.8mm

    Vivaspin concentrators are disposable ultrafiltration devices for concentrating biological samples. Vivaspin 2 is designed for use with samples from 500µl to 2mL in rotors that accept 15mL centrifuge tubes. The unique design provides high-speed concentrations for even particle-laden solutions and near-total concentrate recovery.

    Twin vertical membranes and optimal design for fast, safe concentration

    • Patented twin vertical membrane design for ultra-fast processing speeds
    • In a single spin, solution volumes up to 4mL can be concentrated up to 30x in 5–30 minutes
    • Thin-channel filtration chamber minimizes membrane fouling and increases filtration speed
    • Dead stop pocket built into the bottom eliminates the risk of sample filtration to dryness
    • High-flux PES membranes feature very low protein binding and low extractables
    Designed for maximum flexibility and sample recovery
    • Low internal surface and membrane area for superior recoveries from very dilute solutions
    • Two methods for easy concentrate recovery:
      • Directly pipet the concentrate from the dead stop pocket in the concentrator
      • Reverse-spin the concentrate into the recovery cap, which can be sealed for storage
      • Both methods provide near-total concentrate recovery of greater than 90%
    • Volume graduation for easy monitoring of concentrate volume and 8µl dead-stop volume
    • Universal compatibility with swing bucket or fixed angle rotors accepting 15mL centrifuge tubes

  • Description & Specifications

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