Abstract
Pore characteristics of microporous membranes used for plasma separation and plasma treatment were studied by filtration with aqueous solutions containing spherical particles of uniform diameter. The rejection values for four types of plasma separation membranes of microporous structure show good lineality to particle size with high correlation on log-normal probability coordinates. The mean pore size of 94 to 866 Å and standard deviation of 1.51 to 2.13 were obtained for these membranes. The mean pore sizes obtained by this study relate closely to sieving properties of macromolecules from blood.
