| 摘要 |
PURPOSE:To easily and quickly detect presence of active oxygen generation without using an expensive device or reagent by soaking a copper electrode and reference electrode in water containing oxidation-reduction pigment, and after mixing of a testing object, measuring a potential difference between both the electrodes. CONSTITUTION:A copper electrode 1 and reference electrode 2 are soaked in test water, a potentiometer is connected between both the electrodes, and then a testing object, namely a sample which is tested whether or not it generates active oxygen in the case of being added to the water is added and mixed to measure a potential difference. In this case, a copper plate and copper wire can be used as the copper electrode 1 while an Ag-AgCl electrode or the like can be used as the reference electrode 2. As a quantity of testing object to be added and mixed into the test water, about 0.2-2g for 100ml of the test water is appropriate. In the case of the testing object which generates the active oxygen when being added and mixed into the test water, increase of potential difference is immediately recognized. On the other hand, in the case of the testing object which rarely generates the active oxygen, the increase of potential difference is not recognized. |
