| 摘要 |
PROBLEM TO BE SOLVED: To provide an electrochemical sensor capable of measuring a state of liquid to be measured in real time without causing the remarkable rise of manufacturing cost and measurement cost of a measurement device.SOLUTION: An electrochemical sensor includes: a reference electrode 21; a work electrode 22; a counter electrode 23; and a casing 40 for holding respective electrodes 21-23. The casing 40 includes a bottomed-cylindrical casing body 41 having an insertion hole H1 enabling insertion of the reference electrode 21 thereinto, an insertion hole H2 enabling insertion of the work electrode 22 thereinto, and an insertion hole H3 enabling insertion of the counter electrode 23 thereinto formed on a bottom B. The casing body 41 includes a float 41c capable of preventing sedimentation of electrode surfaces into the liquid to be measured of a portable electrochemical sensor 3 in a state where the electrode surfaces of the respective electrodes 21-23 inserted into the respective insertion holes H1-H3 are immersed into the liquid to be measured.SELECTED DRAWING: Figure 2 |
