Patent ID: 8888972
Filing Date: 2014-11-18
Classification: G01N

Abstract:
1. An electrochemical biosensor electrode structure comprising: a working electrode and a reference electrode used as electrodes for sample measurement being arranged separately from each other in lengthwise direction of a sample insertion path, the working electrode and the reference electrode each having at least one projection and at least one recess alternately arranged on a portion thereof corresponding to the sample insertion path, the projection of the working electrode being correspondingly adjacent to the recess of the reference electrode, the recess of the working electrode being correspondingly adjacent to the projection of the reference electrode; and at least two sample recognition electrodes used as electrodes for sample recognition being separated from each other and arranged adjacent and parallel to the working electrode and the reference electrode, wherein the working electrode and the reference electrode are separated from each other at a first separation distance in a portion corresponding to the sample insertion path, the at least two sample recognition electrodes are arranged in parallel and separated from each other at a second separation distance, with ends of each said sample recognition electrode spaced from one another and separately terminating adjacent the protection and recess of the working and reference electrodes, the projection and recess of the working and reference electrodes extending to the ends of each said sample recognition electrode, and the first separation distance is greater than the second separation distance.