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用经典指示剂法或二次微商电位法测定多组分混合酸,因滴定曲线上各组分之间无明显可区分的突跃而有一定困难。近年来,不少分析工作者籍某些数学方法来解决此类复杂成份的分析,而图解法由于具有简单、直观和实用等优点也常被采用。两组分混合酸的图解法已见报导。本文提出了三组分混合酸分析的直线方法。
The determination of multi-component mixed acids by classical indicator methods or quadratic derivation potentials has some difficulties due to the absence of a clearly distinguishable jump between the components of the titration curve. In recent years, many analysts have resorted to certain mathematical methods to solve the analysis of such complex components, and the graphic method is often adopted because of its simplicity, intuition and practicality. Illustrative methods of mixing two components have been reported. This paper presents a straight line method for three-component mixed acid analysis.