Patent ID: 7262048

Claim:
A biochemical analysis unit, comprising: i) a base plate, which has a plurality of holes, and ii) a porous adsorptive material, which is filled in each of the plurality of the holes of the base plate and forms each of a plurality of adsorptive regions, wherein each of the adsorptive regions comprises a first layer and a second layer, a mean pore diameter of the first layer is larger than a mean pore diameter of the second layer, wherein the first and the second layer of one of said adsorptive regions is connected with a first and a second layer corresponding to an adjacent one of said adsorptive regions at one of surfaces of the base plate, and the biochemical analysis unit further comprises a signal absorbing layer for absorbing a signal positioned below the base plate such that the first layer, the second layer and the signal absorbing layer are present below the base plate outside of the adsorptive regions and the signal absorbing layer is present below the first and the second layer in the adsorptive regions.