| 摘要 |
PURPOSE:To trace a change with time of a composition sequentially and to enable automatic control of the change of the composition by repeating sequentially and automatically operations from the collection of a fluid sample into a treating vessel to the preliminary treatment, analysis and discharge thereof and preparation for a subsequent analysis. CONSTITUTION:The content in a tank C-1 in a process of reaction is collected into a treating vessel R. The vessel R is weighed W, and when it reaches a predetermined weight, a cock V-1 is closed. The vessel R is heated H and then diluted water is injected therein. An agitating vane and a platinum electrode for titration which are fitted to a plate B are lowered into a sample solution in the vessel R and an electrode potential is read continuously by a microcomputer through a potentiometer E. A standard solution in a bottle C-2 is injected into the vessel R through a syringe pump P-4 and the titration is conducted. The microcomputer computes a rate of oxidation by using the quantity of the standard solution. The diluted water is released from slender holes of a showering S and thereby the inside of the vessel R is washed. Simultaneously, a suction nozzle N for discharge is inserted into the bottom part of the vessel R and a discharge pump P-5 is operated to discharge water. The pump P-5 is stopped a prescribed time later and the nozzle N, the electrode and the agitating vane are drawn up. |
