APPLICATION OF A NEW MULTIVARIATE CURVE RESOLUTION PROCEDURE TO THE SIMULTANEOUS ANALYSIS OF SEVERAL SPECTROSCOPIC TITRATIONS OF THE COPPER(II)-POLYINOSINIC ACID SYSTEM

被引：48

作者：

TAULER, R ^{[1
]}

IZQUIERDORIDORSA, A ^{[1
]}

GARGALLO, R ^{[1
]}

CASASSAS, E ^{[1
]}

机构：

[1] UNIV BARCELONA,DEPT QUIM ANAL,E-08028 BARCELONA,SPAIN

来源：

CHEMOMETRICS AND INTELLIGENT LABORATORY SYSTEMS | 1995年 / 27卷 / 02期

关键词：

D O I：

10.1016/0169-7439(93)E0062-9

中图分类号：

TP [自动化技术、计算机技术];

学科分类号：

0812 ;

摘要：

The acid-base properties and the copper(II)-complexing behaviour of the polynucleotide polyinosinic acid have been studied by means of potentiometric and spectrophotometric titrations. Spectrophotometric data have been treated with a new multivariate curve resolution procedure that allows to analyze simultaneously different sets of spectroscopic titrations of the same multi-equilibria system. The results obtained give a real proof of the advantages of the proposed procedure over the single titration analysis: intensity ambiguities are eliminated, as well as rotational ambiguities if the information yielded by at least one of the titrations is selective.

引用

页码：163 / 174

页数：12

共 28 条

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