Patent ID: 6413394
Filing Date: 2002-07-02
Classification: C12Q,G01N

Abstract:
A disposable plate electrode, comprising:a plane substrate; a conductive film disposed on one of two relative larger surfaces of said substrate and comprising at least a pair of elongated separated electrodes forming an electrode pair comprising an anode and cathode; an electric insulating layer partially covering said electrode pair and leaving both ends of said electrode pair uncovered to form a first end pair and a second end pair; the first end pair forming a work electrode and a reference electrode which pair is covered with a biological active layer containing a cellulose carrier having adsorbed therein a biological active substance which reacts chemically or biochemically with a test sample; and the second end pair forming a connector for a sensor for said test sample; wherein said carrier is a blended paste suitable for screen printing and includes microcrystalline cellulose, a high molecular polymer which is polyvinyl alcohol, polyvinyl pyrrolidone, polyethylene glycol, gelatin or a mixture thereof; salt and water.