容量分析法是经典分析方法之一,在分析实验室得到了普遍应用。传统的容量分析法多采用化学指示剂来判定终点,具有试验成本低且便于操作的特点。相比之下,电位滴定法则具有终点判断客观准确和测量结果重现性好等优点。当样品本身的颜色对终点判断有干扰,或反应体系的颜色变化不 Volumetric analysis is one of the classical analytical methods and has been widely used in analytical laboratories. The traditional method of capacity analysis using more chemical indicators to determine the end point, with low test cost and ease of operation features. In contrast, the potential titration method has the advantages of objective and accurate judgment of the end point and good reproducibility of measurement results. When the sample itself, the color of the end point to determine the interference, or the color of the reaction system does not change