| 摘要 |
PURPOSE: To correctly measure the concentration of an additive in an electrolyte by an inexpensive facility in a maintenance-free way by measuring the voltage of an electrolytic cell based on the relationship between the concentration of the additive and voltage of the electrolytic cell. CONSTITUTION: A voltage of an electrolytic cell is used for measuring the concentration of an additive, particularly, glue. An electrolyte to be measured is heated and kept warm to hydrolyze the glue, and a predetermined amount of a glue solution is added to the processed solution to obtain a standard electrolytic solution. Factors of changes by the composition of the electrolyte can be eliminated in the thus-obtained standard electrolyte. Accordingly, a correct relation between the concentration of the glue and voltage of the electrolytic cell, namely, a correct working curve can be formed. In determining the concentration of the glue in the electrolyte, if the working curve is formed preliminarily, the correct concentration of the glue corresponding to the voltage of the electrolytic cell can be determined from the working curve by measuring the voltage of the electrolytic cell storing the electrolyte before heated and kept warm. An anode is preferably of the same material as an electrodeposit and a material not to produce anode slimes during the measurement. |
