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An analysis of distinguishing composite dissolved metal-ligand systems measurable by stripping voltammetry (CROSBI ID 107294)

Prilog u časopisu | izvorni znanstveni rad | međunarodna recenzija

Garnier, Cédric ; Pižeta, Ivanka ; Mounier, Stéphane ; Cuculić, Vlado ; Benaim, Jean Yves An analysis of distinguishing composite dissolved metal-ligand systems measurable by stripping voltammetry // Analytica chimica acta, 538 (2005), 1-2; 263-271-x

Podaci o odgovornosti

Garnier, Cédric ; Pižeta, Ivanka ; Mounier, Stéphane ; Cuculić, Vlado ; Benaim, Jean Yves

engleski

An analysis of distinguishing composite dissolved metal-ligand systems measurable by stripping voltammetry

Voltammetry is a method able of distinguishing the speciation of dissolved metals. An analysis of its ability of distinguishing composite and more complex dissolved metal-ligand systems is done by simulating the experiments for metal-ligand complexing parameters determination. Logarithmic equidistant addition of metal was presumed, covering 2.5 decades. The data obtained with the preset parameter values were subsequently fitted to the presumed models. Data points < detection limit DL = 10-10 mol L-1 were eliminated and random noise following a realistic shape was added to the points to approach them to the real experiment. Four models for simulation and up to five for fitting were applied. The analysis of the results shows that with the now-a-days state of the art in measuring and data treatment techniques, in the most of the cases it was possible to distinguish more complex and also more probable bi-ligand and mixed metal-ligand complexes from the simpler 1:1 metal - ligand systems. Statistical evidences for accepting the right model was given. Its applicability is confirmed by generating a similar Data Mining Server rule.

Voltammetry; metal-ligand complexing parameters; multiligand systems; mono and bi-ligand complexes; mixed-ligand(s) complexes; PROSECE; DMS

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Podaci o izdanju

538 (1-2)

2005.

263-271-x

objavljeno

0003-2670

Povezanost rada

Geologija, Kemija

Indeksiranost