电位分析法测量自来水pH值示值变动性探究

Discussion of digital variability in determination pH of water by potentiometry

在用直接电位法测定自来水的pH值时,常出现测量值连续变化的现象,即长时间示值不稳定。通过实验, 逐一排除可疑因素,找到了原因所在。

The phenomenon of digital varibility often takes on when determining the pH of water by potentiometry, that is the show is unsteady in long times. In ths paper, the reasons was found out by picking out the possible factors one by one.