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Evaluation of a fibre optic device in solution equilibria studies. Application to 3-hydroxybenzoic acid ionization
Guido Crisponi1, Alessandra Caredda, Franco Cristiani
1Centro Interdipartimentale per lo Studio dei Metalli in Medicina, Dipartimento di Scienze Chimiche, Università degli Studi di Cagliari, Cittadella Universitaria di Monserrato, 09042 Monserrato, Cagliari, Italy. crisponi@unica.it
Annali Di Chimica
|June 23, 2004
Abstract:
The use of a fibre optic device for spectrophotometric measurements in solution equilibria studies is presented. In particular the precision obtainable with such equipment is evaluated as a function of different experimental conditions, such as path length, averaging time and stirring of the solution. Analysis of 3-hydroxybenzoic acid ionization is presented to assess the results obtained in the study of an equilibrium system.