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我们从1975年开始,对光度滴定的自动化进行了探索,并制作了一台自动光度滴定仪。其滴定过程自动进行,到达终点自动停止,滴定速度自动调整。对钙,镁、锆、铪等元素的EDTA滴定及铁的重铬酸钾滴定均获得了满意的结果。一、仪器的总体结构全机由四个部分组成:(1)分光部分,采用72型分光光度计的单色仪;(2)电子控制部分;(3)由电磁滴定管构成的滴定动作执行机构;(4)电源部分。其方框图如图1所示。
Since 1975, we have explored the automation of photometric titration and have produced an automatic photometric titrator. The titration process automatically, reaching the end of automatic stop, titration speed automatically adjust. Satisfactory results have been obtained on EDTA titration of calcium, magnesium, zirconium, hafnium and other elements as well as titration of iron dichromate. First, the overall structure of the instrument The whole machine consists of four parts: (1) spectroscopic part, the use of 72 spectrophotometer monochromator; (2) the electronic control part; (3) consisting of the electromagnetic burette titration actuator ; (4) Power section. The block diagram shown in Figure 1.