Adsorption membrane for use e.g. in centrifuge tubes and micro-titration plates, comprises a microporous polymer membrane in which the pores contain porous, hydrocarbon-modified silicon dioxide particles

摘要

Absorption membranes (I) comprising a microporous polymer membrane with an essentially symmetrical pore structure, in which the pores contain porous silicon dioxide particles modified with 2-24C hydrocarbon ligands as adsorbent particles with a spherical or irregular shape, uniformly distributed over the entire cross-section of the membrane. Independent claims are also included for: (1) a method for the production of (I) by making a polymer casting solution, adding modified porous SiO2 particles as above, forming the solution into a membrane shape, immersing the formed solution in a precipitation bath to achieve controlled phase reversal with formation of a porous, particle-filled membrane, and then removing the remaining solvent; (2) an adsorber device comprising a casing open at both ends and containing an adsorption membrane (I); (3) centrifuge tubes containing an adsorber device as above; and (4) multiple micro-titration plates with membranes (I) arranged side by side.