▎ 摘　　要

NOVELTY - The sensor (10) has reference electrode (100) that is provided with an electrolyte filled in the inner space of the housing. A silver/silver chloride electrode (120) is immersed in the electrolyte (130). A working electrode (160) is composed of silver component coated with silver chloride. The working electrode is coated with graphene oxide on portion of surface. The ion exchange polymer comprises calcimycin, chloride ionophore IV, 4,5-dimethyl-3,6-dioctyloxy-o-phenylene-bis(mercurytrifluoroacetate), 3,6-didodecyloxy-4,5-dimethyl-1,2-phenylene-bis(mercury chloride), and 3,6-didodecyloxy-4,5-dimethyl-1,2-phenylene-bis(mercury chloride). USE - Chlorine-ion measurement sensor for detecting chlorine ions in reinforced concrete used in construction of house, road, bridge, skyscraper and dam. ADVANTAGE - The chlorine ion measuring sensor is provided with long lifespan. The sensing sensitivity and the sensing concentration range of chlorine ions are improved, and stable sensing characteristics for a long time are provided. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for a method for manufacturing working electrode of chlorine ion measuring sensor. DESCRIPTION OF DRAWING(S) - The drawing shows a schematic view of the chlorine ion measuring sensor. Chlorine-ion measurement sensor (10) Reference electrode (100) Silver or silver chloride electrode (120) Electrolyte (130) Working electrode (160)