Ozone water concentration measuring device and ozone water concentration measuring method

摘要

The present invention without using the electrolyte, to provide an ozone water concentration measuring apparatus and the ozone water concentration measuring method which can measure the ozone concentration with high accuracy. to the A ozone water as a sample solution S, and contacting at least the counter electrode 4 and the working electrode 2, by applying a voltage between the counter electrode 4 and the working electrode 2, and measures the current value under the voltage By setting, in a ozone water concentration measuring device 100 that calculates the ozone concentration of ozone water, the working electrode 2, a conductive diamond electrode, the surface area in contact with the ozone water in the working electrode ^2, 628~392500μm 2 is within the range. [Selection Figure] Figure 1