ELECTROCHEMICAL MEASUREMENT DEVICE AND TRANSDUCER

Provided is an electrochemical measurement device for measuring a chemical substance generated or consumed by a biological sample in a solution, the electrochemical measurement device comprising a plurality of electrode surfaces, a spacer, and at least one wall plate. The plurality of electrode surfaces, the spacer, and the wall plate are arranged on the same plane. The diameter del of each electrode surface is 80 [mu] m or less. The height of the spacing portion is a predetermined value in the range of h = 21.8 (del + 0.8)/(del + 9.7) +/-5 [mu] m]. The spacer has a structure in which a three-dimensional region closed by the biological sample, the plane, and the spacer is not formed in a state in which the biological sample is in contact with the spacer. The wall plate has the property of being impermeable to solute in the solution and has a height greater than or equal to the height of the spacing part. The two electrode faces are separated by a wall plate. 提供一种电化学测定装置，测定溶液中的生物样本所生成或消耗的化学物质，其包括：多个电极面、间隔部、至少一