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High recovery centrifugal filters for concentrating samples. Can be used to concentrate biological samples containing antigens, antibodies, enzymes, nucleic acids or micoorganisms. Excellen for use to purify macromolecular components from cell lysates. Ideal for desalting and buffer exchanges.Swing bucket rotorL 4,000 x g; Fixed angle rotor (35): 5,000 x g.. High recovery Ultracel regenerated cellulose membrane in a range of molecular weight cut-offs.. High retentate recovery of >90%. Vertical membrane reduces concentration polarization for ultra-fast spin times (as fast as 10-15 mins). Heat-sealed membrane minimizes downstream extractables. 100% integrity tested for reliable performance. Convenient sample monitoring with translucent housing and volume graduations. Direct pipettor sample access eliminates processing step to recover concentrate. High concentration factors of 80 - 100X
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