SELF-MODELING CURVE RESOLUTION ANALYSIS OF SYNCHRONOUS FLUORESCENCE SPECTROSCOPY DATA FOR CHARACTERIZATION OF ACID MIXTURES AND STUDY OF ACID-BASE EQUILIBRIA

• Type: Article in International Scientific Journal
• Date: 1995

Authors

DESILVA, JCGE (Author) FCUP; MACHADO, AASC (Author) FCUP

Journal

Title: The Analyst

Vol. 120

Pages: 2553-2560

ISSN: 0003-2654

Publisher: Royal Society of Chemistry

Indexing

ISI Web of Knowledge - 6 Citations

Scopus - 21 Citations

Scientific classification

FOS: Natural sciences > Chemical sciences

Other information

Authenticus ID: P-001-G5X

Abstract (EN): Aqueous solutions of carboxylic acids and phenols at micromolar concentration levels were analysed by synchronous fluorescence (SyF) spectroscopy. A strategy, based on provoking controlled variations in SyF spectra by changing the pH and treating spectral data by evolving factor analysis with specific concentration constraints, was developed and evaluated to extract information from the SyF data to determine acid-base parameters for;simple acids and mixtures, The procedure was tested on an aqueous mixture of salicylic acid, caffeic acid and catechol as well as on pure solutions of these and other acids.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 8