0181753 - UFCH-W 20030192 RIV DE eng J - Článek v odborném periodiku
Sander, S. - Navrátil, Tomáš - Novotný, Ladislav
Study of the Complexation, Adsorption and of the Electrode Reaction Mechanisms of Chromium(VI) and (III) with DTPA Under Adsorptive Stripping Voltammetric Conditions.
Electroanalysis. Roč. 15, č. 19 (2003), s. 1513-1521. ISSN 1040-0397. E-ISSN 1521-4109
Grant ostatní: GIT(AR) 101/02/U111/CZ
Výzkumný záměr: CEZ:AV0Z4040901
Klíčová slova: chromium(VI) and (III) * voltammetry * complexation with DTPA
Kód oboru RIV: CG - Elektrochemie
Impakt faktor: 1.811, rok: 2003

The complexation of Cr(III) and Cr(VI) with diethylenetriaminepentaacetic acid (DTPA), the redox behavior of these complexes and their adsorption on the mercury electrode surface were investigated by a combination of electrochemical techniques and UV/vis spectroscopy. A homogeneous two-step reaction was observed when mixing Cr(III), present as hexaquo complex, with DTPA. The first reaction product, the electroactive 1:1 complex, turns into an electroinactive form in the second step. the results indicate that the second reaction product is presumably a 1:2 Cr(III)/DTPA complex.
Trvalý link: http://hdl.handle.net/11104/0078275