Electrochemical measuring apparatus provided with an enzyme electrode

摘要

An electrochemical measuring apparatus which essemtially comprises an asymmetric semipermeable membrane (7) mounted on an immobilized enzyme membrane (6) of an enzyme electrode (10), said asymmetric semipermeable membrane (7) being essemtially formed of a thin semipermeable layer exposed to the outside for contact with a liquid to be measured and an inner adjacent thick porous layer, and can measure an organic ingredient such as glucose contained in blood or serum with high sensitivity in a short time and moreover has a prominent durability.