Pierce Protein Concentrators PES contain a membrane rated for retaining molecules with a molecular weight at least 2-fold greater than the MWCO rating of the PES membrane within the device. The vertical design of the membrane allows high flux rates, low nonspecific binding, and negligible protein aggregation on the membrane and it offers reliable and consistent results. ![]() To assist with sample addition and recovery, a clear window with graduations is located on the side of each device enabling visual determination of the retentate volume. Compatibility-may be used in both fixed angle and swing bucker rotors collect and recover sample without invert spinningįor easy identification, the MWCO value is etched on the side of each device.Versatility-perform sample concentration, diafiltration, or buffer-exchange of biological samples.Excellent protein recovery-typical protein recovery is >90%.Rapid protein concentration-sample concentration of 10- to 30-fold can be achieved in 5 to 30 minutes for 10K MWCO (time may vary for a product with a different MWCO).This product has a molecular weight cutoff (MWCO) of 50K and can be used for processing sample volumes ranging from 2 to 6 mL.įeatures of Pierce Protein Concentrators PES: ![]() Thermo Scientific Pierce Protein Concentrators PES are disposable ultrafiltration centrifugal devices with a polyethersulfone (PES) membrane for concentration, desalting, and buffer exchange of biological samples.
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