Normal Projection Target Factor Analysis and Its Application to Spectrophotometric Analysis ——Study for Simultaneous Determination of Rare Earth Elements Multicomponent Mixture

Chem. J. Chinese Universities ›› 1993, Vol. 14 ›› Issue (8): 1058.

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Normal Projection Target Factor Analysis and Its Application to Spectrophotometric Analysis ——Study for Simultaneous Determination of Rare Earth Elements Multicomponent Mixture

DONG Ke-Ling, WANG Hong-Yan, WANG Duo-Xi

Department of Applied Chemistry, Changchun Geological College, Changchun, 130026

Received:1992-11-02 Revised:1993-05-05 Online:1993-08-24 Published:1993-08-24

Abstract

Abstract: Singular value decomposition (SVD) method has been used to decompose the data matrix of absorption value.The difficulty of matrix loss rank has been well resolved, and so the precision of the calculated result of concentration has been increased apparently.The more the components in the system, the more similar the absorption spectra of complexes, the more remarkable the increasing degree.It has been proved that normal projection matrix can be applied to realization of target transformation.Now target test criterion, similar coefficient (Q_ta), has been used so that the calculated results were improved.By using this method, three-component synthetic samples of rare earth elements such as La,Sm and Tm have been determined and calculated.The results are satisfactory.

Key words: Factor analysis method, Multicomponent spectrophotometric analysis, Rare earth elements

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DONG Ke-Ling, WANG Hong-Yan, WANG Duo-Xi . Normal Projection Target Factor Analysis and Its Application to Spectrophotometric Analysis ——Study for Simultaneous Determination of Rare Earth Elements Multicomponent Mixture[J]. Chem. J. Chinese Universities, 1993, 14(8): 1058.

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Normal Projection Target Factor Analysis and Its Application to Spectrophotometric Analysis ——Study for Simultaneous Determination of Rare Earth Elements Multicomponent Mixture

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