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系统研究了化学计量学方法在滴定分析中的应用，将主成分回归与单点络合电势滴定法相结合同时测定了三元或四元多组分混合试样中各组分金属离子混合物，探讨了方法原理及矩阵求解，确定了主成分常数矩阵，结果良好．
The application of chemometric method in titration analysis was systematically studied. The principal component regression was combined with the single-point complexometric titration method to simultaneously determine the metal ion mixtures of various components in the ternary or quaternary multicomponent mixed samples The principle of the method and the matrix solution are given, the principal component constant matrix is determined, and the result is good.