Sartorius Vivaspin™ 20 Centrifugal Concentrator

Description

• Offers increased volume flexibility and performance
• VivaspinTM 20 Centrifugal Concentrator handles up to 20mL in swing bucket rotors and 14mL in fixed angle rotors accepting 50mL centrifuge tubes
• Features twin vertical membranes for unparalleled filtration speed and >100-fold concentration
• Vivaspin™ 20 centrifugal concentrators have been developed to offer increased volume flexibility and performance
• Vivaspin™ 20 handles up to 20mL in swing bucket rotors and 14mL in fixed angle rotors accepting 50mL centrifuge tubes
• Vivaspin™ 20 features twin vertical membranes for unparalleled filtration speed and >100-fold concentration
• Volume graduation allows to monitor the concentration process and the modified dead stop pocket simplifies pipetting of the final concentrate
• For higher process flexibility, Vivaspin™ 20 is available with unique accessories and operating methods
• For one-step desalting following concentration, a diafiltration cup filled with buffer is placed on the concentrator and spun to achieve 98% salt removal, instead of two spins to achieve the same result with the traditional refill and re-spin procedure
• When an appropriate centrifuge is unavailable, or for single sample processing, for gas pressure filtration, Vivaspin™ 20 can be filled with up to 15ml and then pressurised for bench top concentration
• For even faster processing, gas pressure filtration can be combined with centrifugation
• Pressure-fugation is particularly useful for difficult or viscous samples such as serum, when using a low process temperature, or generally when minimum process time is essential
• High flux PES membrane High retentate recovery > 90 % Vertical twin membrane for ultra fast concentration Universal rotor compatibility Safe sample concentration due to dead-stop volume Convenient concentrate recovery by pipetting Volume graduation for easy reading/monitoring 100-fold concentration with twin vertical membranes Additional option for pressurized operation Rotor Compatibility Please note: Vivaspin™ 20 (30mm × 116mm) is designed to fit into rotors that can accommodate Falcon 50 ml conical bottom tubes, e.g
• Beckman Allegra 25R with TS-5.1-500 swing-out rotor with BUC 5 buckets and 368327 adaptors; Beckman TA-10.250 25° fixed angle rotor with 356966 adaptors; Multifuge 3 S-R with 75006445 swing out rotor with 75006441 buckets and adaptors for Falcon 50 ml conical bottom tubes
• These devices are not designed to fit into rotors that only accept round bottom 29mm × 105mm tubes, e.g
• Sorvall SS34 or Beckmann JA 20
• If your rotor accepts only 29mm × 105mm round bottom tubes, please use the Vivaspin™ 15, which can be used in either round bottom or conical centrifuge tubes