正交投影目标因子分析法及其在光度分析中的应用——稀土元素多组分混合物同时测定的研究  

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

作　　者：董克玲[1] 王洪艳[1] 王多禧[1] 

机构地区：[1]长春地质学院应用化学系,长春130026

出　　处：《高等学校化学学报》1993年第8期1058-1062,共5页Chemical Journal of Chinese Universities

基　　金：地质行业科技发展基金

摘　　要：本文将奇异值分解法引入因子分析,较好地解决了由于矩阵亏秩引起的困难;并采用正交投影矩阵法实现目标转换,以相似性系数Q_(ta)作为新的目标检验判据,使计算结果得到改善.用本法测定并计算了La、Sm、Tm混合物的合成样品,获得满意的结果.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 (Qta), 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.

关 键 词：因子分析 光度分析 稀土元素 

分 类 号：O657.3[理学—分析化学]