Carbon sensor electrode and process for producing the same.

摘要

A carbon electrode is dipped in a solution containing a reactant (12), and the carbon electrode impregnated with the solution is covered with an insulating outer layer (11); or a solution containing a reactant is poured into an insulating tube, and a carbon electrode is inserted into the tube; whereby the reactant is made coexistent in the periphery of the carbon electrode. Alternatively, a reactant such as an active enzyme and graphite particles or activated carbon particles (13) are mixed with a liquid and dispersed therein to prepare a thoroughly wetted paste (14). The paste is introduced by means of an extruding mechanism (16, 17) such as a syringe into an insulating outer layer member in which a bundle of many thin carbon rods as a lead is inserted. Thus, a carbon sensor electrode is produced.