Patent ID: 6258531
Filing Date: 2001-07-10
Classification: B01D,G01N,Y10S

Abstract:
A method for isolating a biological material, comprising:providing a hollow structural form having a first opening and a second opening and comprising an elution liquid-insoluble solid compressible porous matrix;binding a biological material to the compressible porous matrix;thereafter introducing the hollow structural form into an elution liquid-containing elution vessel through an opening therein, wherein the outer wall surface of the hollow structural form urges against the inner wall surface of the elution vessel, and wherein the first opening and the compressible porous matrix are configured to allow the passing of the elution liquid from the exterior of the hollow structural form through the first opening and into the compressible porous matrix;thereafter inserting a piston, having a contact surface, into the hollow structural form through the second opening therein, and compressing the compressible porous matrix using the contact surface to force any elution liquid and biological material bound by the compressible porous matrix above the contact surface of the piston; andlocking the contact surface in place using locking means, provided on the piston, for maintaining the compression of the compressible porous matrix by the contact surface.