title: Potential shift correction in multivariate curve resolution of voltammetric data. General formulation and application to some experimental systems.
abstract: A new mathematical algorithm is proposed to correct the progressive potential shift of some voltammetric signals that decrease the linearity of the data. The corrected data matrix can be further analysed by Multivariate Curve Resolution by Alternating Least Squares (MCR-ALS) and the vector including the potential shift corrections can be fitted to specific equations such as that by DeFord-Hume. A detailed discussion is given on the different cases of potential shift correction, and, in some of them, mathematical simulation is made or experimental systems [Cd(ii)-glutathione and Zn(ii)-glycine] are analysed.
authors: Departament de Química Analítica, Facultat de Química, Universitat de Barcelona, Martí i Franquès 1-11, E-08028-Barcelona, Spain.
authors: Arístides
authors: A
authors: Alberich
authors: José Manuel
authors: JM
authors: Díaz-Cruz
authors: Cristina
authors: C
authors: Ariño
authors: Miquel
authors: M
authors: Esteban