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在恒流库仑滴定中,要求提供高精度的恒电流和准确地记录滴定时间。我们组装的恒流库仑滴定仪能满足上述两方面的要求。一、工作原理仪器的原理方框图如图1所示在库仑滴定池内加入样品后,指示剂呈现一定颜色(例如百里香酚酞在酸中为无色)
In constant current coulometric titration, it is required to provide high-precision constant current and accurately record the titration time. Our assembled constant current coulometer can meet the above two requirements. First, the working principle of the instrument block diagram shown in Figure 1 in the coulometric titration tank after adding the sample, the indicator presents a certain color (such as thymolphthalein in acid is colorless)