| abstract |
The invention relates to a cellulose hydrate membrane having a porous double structure made of micropores having a diameter in the range from >100nm to 20 µm and ultrapores having a diameter of <100nm and not accessible to dextran blue having an average molecular weight Mw of 2,000,000, wherein the proportion of the volume of the ultrapores to the total pore volume accessible to water is greater than 15%. The invention further relates to a method for producing the membrane, the use thereof as an adsorption membrane, and a device for membrane chromatography. |