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

Authors
TAULER R IZQUIERDORIDORSA A GARGALLO R CASASSAS E
Citation
R. Tauler et al., APPLICATION OF A NEW MULTIVARIATE CURVE RESOLUTION PROCEDURE TO THE SIMULTANEOUS ANALYSIS OF SEVERAL SPECTROSCOPIC TITRATIONS OF THE COPPER(II)-POLYINOSINIC ACID SYSTEM, Chemometrics and intelligent laboratory systems, 27(2), 1995, pp. 163-174
Citations number
28
Categorie Soggetti
Computer Application, Chemistry & Engineering","Instument & Instrumentation","Chemistry Analytical","Computer Science Artificial Intelligence","Robotics & Automatic Control
Journal title
Chemometrics and intelligent laboratory systems → ACNP
ISSN journal
01697439
Volume
27
Issue
2
Year of publication
1995
Pages
163 - 174
Database
ISI
SICI code
0169-7439(1995)27:2<163:AOANMC>2.0.ZU;2-B
Abstract
The acid-base properties and the copper(II)-complexing behaviour of th e polynucleotide polyinosinic acid have been studied by means of poten tiometric and spectrophotometric titrations. Spectrophotometric data h ave been treated with a new multivariate curve resolution procedure th at allows to analyze simultaneously different sets of spectroscopic ti trations of the same multi-equilibria system. The results obtained giv e a real proof of the advantages of the proposed procedure over the si ngle titration analysis: intensity ambiguities are eliminated, as well as rotational ambiguities if the information yielded by at least one of the titrations is selective.