Multicomponental Fluorimetric Determination of Aluminium, Gallium and Indium

Multicomponental Fluorimetric Determination of Aluminium, Gallium and Indium

Článek recenzovaný mimo WoS a Scopus

For the fast characteristics of mixtures of Aluminium, Gallium and Indium the fluorimetric evaluation in the form of complexes with 8-Hydroxyquinoline-5-sulphonic acid is described at selected pH. The highly collinear correlated fluorescent spectra and their first derivation were evaluated under various experimental conditions with the Multiple Linear Regression (MLR), Partial Least Squares (PLS) methods and Kalman filtering. When comparing the results, the PLS gives the least relative prediction errors under optimal conditions, 5.6-15.9 % for the concentration range of Al 0.025-0.2 g.cm-3, Ga 0.1-0.8 g.cm-3 and In 0.1-0.8 g.cm-3 in the mixture.

For the fast characteristics of mixtures of Aluminium, Gallium and Indium the fluorimetric evaluation in the form of complexes with 8-Hydroxyquinoline-5-sulphonic acid is described at selected pH. The highly collinear correlated fluorescent spectra and their first derivation were evaluated under various experimental conditions with the Multiple Linear Regression (MLR), Partial Least Squares (PLS) methods and Kalman filtering. When comparing the results, the PLS gives the least relative prediction errors under optimal conditions, 5.6-15.9 % for the concentration range of Al 0.025-0.2 g.cm-3, Ga 0.1-0.8 g.cm-3 and In 0.1-0.8 g.cm-3 in the mixture.

8-hydroxyquinoline-5-sulphonic acid Aluminium, Gallium, Indium complexes Fluorescence Cationic surfactants The first derivative spectra Multivariate evaluation

8-hydroxyquinoline-5-sulphonic acid Aluminium, Gallium, Indium complexes Fluorescence Cationic surfactants The first derivative spectra Multivariate evaluation

VOJTA, Š.; JANČÁŘ, L.; SOMMER, L.

15.12.2007

2008 (18)

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