Analytical control of organic additives in electrolytic baths by UV spectroscopy in combination with multivariate analysis

被引：6
|
作者：
Blanco, M [1 ]
Coello, J [1 ]
Iturriaga, H [1 ]
Maspoch, S [1 ]
Serrano, D [1 ]
机构：
[1] Univ Autonoma Barcelona, Fac Ciencias, Unidad Quim Analit, Dept Quim, E-08193 Barcelona, Spain
来源：
FRESENIUS JOURNAL OF ANALYTICAL CHEMISTRY | 1999年 / 363卷 / 04期
关键词：
D O I：
10.1007/s002160051204
中图分类号：
O65 [分析化学];
学科分类号：
070302 ; 081704 ;
摘要：
A method for the simultaneous determination of organic additives in Zn(II) and Ni(II) electrolytic baths is proposed. Absorbance and first-derivative spectra were subjected to direct and, inverse multiple linear regression (CLS and ILS, respectively) in order to choose the optimum alternative. The use of a factor design to prepare the samples enables the identification of interactions between analytes and their correction by ILS. The results provided by first-derivative spectra were slightly better than those obtained with absorbance spectra (prediction errors were always less than 2% with the former). The ILS procedure was applied to three industrial baths used to a different extent, with highly satisfactory results.
引用
收藏
页码：364 / 368
页数：5
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