Potential shift correction in multivariate curve resolution of voltammetric data.: General formulation and application to some experimental systems

被引：40

作者：

Alberich, Aristides ^{[1
]}

Diaz-Cruz, Jose Manuel ^{[1
]}

Arino, Cristina ^{[1
]}

Esteban, Miquel ^{[1
]}

机构：

[1] Univ Barcelona, Fac Quim, Dept Quim Analit, E-08028 Barcelona, Spain

来源：

ANALYST | 2008年 / 133卷 / 01期

关键词：

D O I：

10.1039/b715667g

中图分类号：

O65 [分析化学];

学科分类号：

070302 [分析化学]; 081704 [应用化学];

摘要：

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.

引用

页码：112 / 125

页数：14

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