| 摘要 |
PURPOSE:To prevent the development of error in the analysis by changing over an applied voltage between a specified measurement voltage and a specified cleaning voltage that are different with a specified temporal interval and estimating the steady current from the current curve for the unsteady state by means of applying the measurement voltage and by cleaning the electrode by applying the cleaning voltage. CONSTITUTION:In voltammetry analysis, an applied voltage is applied by changing-over with a specified temporal internal t1 and t2 to a specified measurement voltage E1 and a specified cleaning voltage E2 that are respectively different. The steady limit current curve (ifinfinity ) is estimated by curve fitting of a current curve in the unsteady state obtained by the measurement voltage E1. On the other hand the substance that crystallizes on the electrode by the cleaning voltage E2 is made to dissolve. With this arrangement the measurement time t1 can be within 1sec and the cleaning time within about 2sec, and one cycle can be within a few seconds. Furthermore, exact analysis can be made with error due to pollution of the electrode prevented. |
