多元酸单点滴定法研究

Studies on Polybasic Acid Single-point Titration

研究单点滴定法在多元酸测定中的应用，导出了多元酸单点简定法计算公式，并讨论了滴定剂加入量与单点法测定结果准确度和精密度的关系。已用本法对试样、标样及标准溶液进行了１００多次测定，用微机处理数据，测定结果的相对误差和变异系数均在０．２％左右。

The principle,technique and application of polybasic acid single-point titration are introduced,and the calculating formula is derived.The dependence of the accuracy of the measurement on the amount of titrant added is discussed.The technique has been used to measure standard samples,standard solution and samples over 100 times,and the results show that the relative errors and the relative standard deviation is about 0.2%.