Patent ID: 7300750
Filing Date: 2007-11-27
Classification: G01N,Y10S,Y10T

Abstract:
1. An assay device capable of detecting an analyte which is a member of a pair of specific binding partners, the device comprising a pre-absorbing zone and a specific binding zone; wherein the specific binding zone comprises a specific binding partner immobilized thereon which specifically binds the analyte; wherein the pre-absorbing zone comprises at least one immobilised antigen or immobilised antibody, at least one receptor moiety, or combination thereof, which function as pre-absorbing group(s) immobilised in said pre-absorbing zone, the pre-absorbing groups designed such that they bind an interferent in the sample rather than the analyte, said interferent being immunologically cross-reactive with the specific binding partner in the specific binding zone; wherein a sample suspected of containing the analyte passes through the pre-absorbing zone prior to entering the specific binding zone.