| 摘要 |
PROBLEM TO BE SOLVED: To measure accurate concentration even when a standard sample does not exist at a measurement place. SOLUTION: The electrochemical analysis device is equipped with a detection part 2 being brought into contact with an object to be measured such as the ozone constituent of gas or liquid and a conversion part 3 for calculating and converting a detection signal from the detection part 2, and measures constituent concentration by the conversion part using the incline of change in a current value detected by the detection part 2. In this case, a sensitivity coefficient is incorporated, where the sensitivity coefficient is calculated based on the difference between the incline of the current value at the detection part of an electrolysis diaphragm system where electrolysis liquid is included between two electrodes and concentration incline by a standard sample for calibration, and the detection value of the detection part 2 is calibrated by the sensitivity coefficient at the conversion part 3 on actual measurement for measuring the constituent concentration. |
