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近二十年来,有许多分析化学家进行过自动滴定法的研究。所提出的方案甚多,但大多是利用电子管线路,使插在溶液中的指示电极在等当点时的电位变化加以放大,带动继电器,使滴定自动停止。Robinson 和 Lingane 成功地制成了自动滴定仪;Lingane 的装置以注射器为滴定管。注射器由一小电动机带动,滴定液经一毛细管流入滴定池中,滴定液流出之体积数可由一回转计数器来指示,用记录式电位差计来记录滴定曲线。其后,高桥武雄等将此装置用于自动示差滴定:他们用一小电动机同时带动注射器和一纸带,等当点可
In the past two decades, many analytical chemists have conducted automatic titration studies. Many proposals are made, but most of them utilize the tube line to amplify the potential change of the indicator electrode inserted in the solution at the equivalent point to drive the relay to stop the titration automatically. Robinson and Lingane succeeded in making an autotitrator; Lingane’s device uses a syringe as a burette. The syringe is driven by a small motor and the titrant flows into the titration cell through a capillary tube. The volume of titrant solution flowing out can be indicated by a revolution counter, and the titration curve can be recorded with a recordable potentiometer. Later, Takahashi Takeo used the device for automatic differential titration: they used a small motor to drive the syringe and a strip of paper at the same time