Determination of Partition Coefficients of Metals in Natural Tropical Water

Autor(es)

Giancoli Barreto, Sonia Regina ^[1] ; Barreto, Wagner Jose ^[1] ; Deduch, Elisangela Manjurma ^[1]

Afiliação do(s) autor(es)

^[1] Univ Estadual Londrina, Dept Chem, Lab Environm Phys Chem, Ctr Exact Sci, BR-86051980 Londrina, PR - Brazil

• Tipo de documento: Artigo Científico
• Fonte: CLEAN-SOIL AIR WATER; v. 39, n. 4, p. 362-367, APR 2011.
• Citações Web of Science: 2

Resumo

The values for the partition coefficient (K(d)) were calculated for Ca, Mg, Cd, Cr, Cu, Fe, Mn, Pb, Ni, and Zn at 19 sites in the Capivara hydroelectric reservoir in Brazil. It was found that the relative values of K(d) follow the order: Cr > Mn > Fe > Cu > Zn > Ni > Pb > Ca > Cd, differing from the values reported for K(d) in aquatic systems in the northern hemisphere. A hierarchical cluster analysis and linear correlations showed that Cr is strongly associated with Fe and Cu, and that Cd is the only metal found in complexation with organic matter, explaining its higher solubility. (AU)

• Processo FAPESP: 05/51242-8 - Emprego de indicadores de qualidade de água e outras ferramentas de gestão ambiental para avaliar o efeito das atividades antrópicas sobre os rios Preto, Turvo e Grande na região de São José do Rio Preto
• Beneficiário: Márcia Cristina Bisinoti
• Modalidade de apoio: Auxílio à Pesquisa - Jovens Pesquisadores