Answer:Both have 2.5 m² Omega PES membranes, but this version uses a 10 kDa rather than 5 kDa nominal MWCO.
Answer:It supports protein concentration, buffer exchange and diafiltration when the target product is adequately retained by the membrane.
Answer:No. MWCO is a nominal membrane characteristic; product shape, solution chemistry, pressure and membrane interactions influence actual retention.
Pall T-Series Centrasette Omega PES is a 2.5 m² tangential flow filtration cassette for ultrafiltration and diafiltration of biological process streams. This version has a 10 kDa nominal molecular weight cutoff, providing a different separation profile from the otherwise similarly sized 5 kDa Centrasette cassette. The Omega polyethersulfone membrane is designed for high flux, low protein binding and operational durability. During processing, retained macromolecules remain in the recirculating retentate as the permeate removes smaller dissolved components. Applications include concentrating protein solutions, changing formulation buffers and reducing concentrations of low-molecular-weight process impurities. The appropriate cutoff is selected on the basis of target-product recovery, permeate quality and processing throughput, not simply the nominal molecular mass of the protein. Feed viscosity, transmembrane pressure and crossflow influence membrane performance. Select a matching cassette holder and use process-compatible cleaning and integrity-control procedures.
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