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Electrochemical Detection of Cadmium and Lead Complexes with Low Molecular Weight Organic Acids
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SYSNO ASEP 0322898 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Electrochemical Detection of Cadmium and Lead Complexes with Low Molecular Weight Organic Acids Title Elektrochemická detekce komplexů kadmia a olova s nízkomolekulárními organickými kyselinami Author(s) Jaklová Dytrtová, J. (CZ)
Šestáková, Ivana (UFCH-W) RID
Jakl, M. (CZ)
Navrátil, Tomáš (UFCH-W) RID, ORCIDSource Title Electroanalysis. - : Wiley - ISSN 1040-0397
Roč. 21, 3-5 (2009), s. 573-579Number of pages 7 s. Language eng - English Country DE - Germany Keywords citric acid ; oxalic acid ; heavy metals ; voltammetry Subject RIV CF - Physical ; Theoretical Chemistry R&D Projects GA521/06/0496 GA ČR - Czech Science Foundation (CSF) GA203/07/1195 GA ČR - Czech Science Foundation (CSF) IAA400400806 GA AV ČR - Academy of Sciences of the Czech Republic (AV ČR) CEZ AV0Z40400503 - UFCH-W (2005-2011) UT WOS 000264063500047 DOI 10.1002/elan.200804451 Annotation The Cd and Pb complexes with oxalic (OA) and citric acid (CA) were detected in model and soil solutions using cyclic and stripping voltammetry. A mixed complex consisting of Cd, Pb, and OA was found; its peak potential varied from -582.0 to -542.5 mV (vs. Ag/AgCl/KCl(3 mol/L)). For mixed complex formation, the presence of PbOH+ species and Cd2+ in oxalic acid solution was necessary. Only the "simple" complexes of CA with Pb and Cd were found in the model solution. The existence of all investigated metal complexes is confined to neutral pH range. The mixed komplex was also found in real soil solutions. Workplace J. Heyrovsky Institute of Physical Chemistry Contact Michaela Knapová, michaela.knapova@jh-inst.cas.cz, Tel.: 266 053 196 Year of Publishing 2009
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