INVESTIGATION OF COPPER(II) ETHYLENEDIAMINETETRAACETATE COMPLEXATION BY WINDOW FACTOR-ANALYSIS OF ULTRAVIOLET-SPECTRA

被引：49

作者：

DEN, W ^{[1
]}

MALINOWSKI, ER ^{[1
]}

机构：

[1] STEVENS INST TECHNOL,DEPT CHEM & CHEM ENGN,CASTLE POINT,HOBOKEN,NJ 07030

来源：

JOURNAL OF CHEMOMETRICS | 1993年 / 7卷 / 02期

关键词：

FACTOR ANALYSIS; WINDOW FACTOR ANALYSIS; MULTICOMPONENT ANALYSIS; ULTRAVIOLET SPECTROSCOPY; CU(II) COMPLEXES; ETHYLENEDIAMINETETRAACETIC ACID EDTA;

D O I：

10.1002/cem.1180070203

中图分类号：

TP [自动化技术、计算机技术];

学科分类号：

0812 ;

摘要：

Window factor analysis (WFA) is a self-modeling chemometric technique for obtaining the concentration profiles of components from evolutionary processes such as chromotography, titrations and reaction kinetics. By specifying the 'window', i.e. the region along the evolutionary axis indigenous to a component, the concentration profile of the component can be obtained without recourse to any information concerning the other components. Mathematical expressions required to perform such computations are derived. The method is applied to the investigation of copper(II) complexation with ethylenediaminetetraacetate (EDTA) by recording and factor analyzing the ultraviolet spectra of aqueous solutions containing a fixed amount of the disodium salt of EDTA and varying amounts of CuCl2. Evidence for four different species of EDTA is obtained. Clues concerning the stoichiometry of the species are garnered from the concentration profiles.

引用

页码：89 / 98

页数：10

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