Conventional laboratory ultrafiltration involves applying a pressure (positive or negative) to
drive a solution through a semi-permeable membrane to clarify, concentrate or fractionate the molecular
species in the range of 1 - 1,000 kD. Spectrum's Molecular/Por®Ultrafiltration Membranes and
Stirred Cells
are specifically designed to easily perform these separations in the laboratory environment.
Conventional laboratory ultrafiltration involves applying a pressure (positive or negative) to
drive a solution through a semi-permeable membrane to clarify, concentrate or fractionate the molecular
species in the range of 1 - 1,000 kD. Spectrum's 
