Assistant apparatus, test apparatus and method for measuring concentration of test substance in liquid.

摘要

A disk-shaped thin plate (2) or a long-sized thin plate having a roll appearance housed in a casing (1) in which openings (4) for penetration of test substance are formed and on which diffusion-limiting membranes (3) are adhered to cover each openings (4). Also a driving mechanism (5, 12, 14) for moving the thin plate (2) is provided to the casing (1). The casing (1) thus houses the thin plate (2) and is provided with the driving mechanism (5, 12, 14) and is positioned in a test apparatus body having a concentration measuring electrode therein. Multiple measurements of concentration of test substance are carried out by moving the thin plate (2) by the driving mechanism (5, 12, 14) to position the diffusion-limiting membrane (3) having the test solution deposited thereon to the position available to contact with the concentration measuring electrode, while keeping the casing (1) placed in the test apparatus body. As a result a plurality of measurements of concentration of test substance is carried out easily.