| 摘要 |
PURPOSE: To provide an oxidation-reduction current measuring type dissolved ozone measuring device in which interference by free chlorine is easily eliminated without requiring a complicated measuring device or complicated measuring work, and the dissolved ozone concentration in a sample solution where dissolved ozone and free chlorine are coexistent can be precisely measured. CONSTITUTION: A sample solution passage 4 and a counter electrode chamber 6 are partitioned by a filter 2, and a detecting electrode 8 and a counter electrode 10 are arranged in the sample solution passage 4 and in the counter electrode chamber 6, respectively. The counter electrode chamber 6 has an electrolyte supplying means for generating an electrolytic solution, so that the electrolytic solution generated in the counter electrode chamber 6 is soaked into the filter 2 and interposed between the detecting electrode 8 and the counter electrode 10, whereby the detecting electrode 8 is electrically connected to the counter electrode 10. The detecting electrode 8 is formed of a platinum electrode, and the counter electrode 10 of a silver/silver chloride electrode. |
