Patent ID: 9138741
Filing Date: 2015-09-22
Classification: B01D,B01L

Abstract:
1. A filter pipette tip with a small tube with a relatively large aperture at one end for attaching to a pipette, a relatively small aperture at the other end for the passage of liquid and a through-channel between the large aperture and the small aperture and a porous filter comprising a first layer, arranged in the through-channel filling up a portion of the through-channel which contains a superabsorber, wherein the filter comprises a second layer arranged in series with the first layer in the direction of the through-channel, the first layer containing the superabsorber being arranged closer to the large aperture than the second layer without superabsorber, and wherein the first layer comprises a compressed intermixture of the superabsorber and a first plastics granulate, the second layer comprises a compressed second plastics granulate, and wherein the first and second layers of the filter are sintered to one another to form a one-piece filter body.