Patent ID: 8586376
Filing Date: 2013-11-19
Classification: B01D,G01N,Y10T

Abstract:
1. A method for producing an analysis element spreading layer, which is implemented for absorbing a liquid to be analyzed in an analysis element and distributing it uniformly over a liquid outlet side of the analysis element spreading layer, the method comprising the following steps: supplying a porous starting membrane having a top side, a bottom side and a starting thickness D between the bottom side and the top side, the size of the pores of the starting membrane increasing at least sectionally over its starting thickness D, selecting a predefined distance within the starting thickness D of the starting membrane parallel to the top side of the starting membrane corresponding with a desired mean pore size; cutting the starting membrane at the predefined distance in such a manner that a sublayer of the starting membrane is removed, wherein supplying the analysis element spreading layer formed to a test field having a reaction layer with at least one reagent, which is part of a reagent system for detecting an analyte in the liquid sample.