Electrochemical sensor

摘要

An electrochemical sensor, comprising an electrochemically active sensor spot (3) in at least one electrically isolated, planar substrate area (1), is new. An electrochemical sensor, comprising an electrochemically active sensor spot (3) in at least one electrically isolated, planar substrate area (1), is characterized that (3) can be contacted by a current lead (2), which originates from the measurement area (6) and runs parallel with a bridging layer (8), which leads away from the substrate layer. (1) comprises at least one metal oxide from a metal selected from the groups VII and VIII of the periodic table. (8) comprises a non-corrosive material. (3) can be contacted in (6) by an aqueous probe.