In situ fractionation and redox speciation of arsenic in soda lakes of Nhecolândia (Pantanal, Brazil) using the diffusive gradients in thin films (DGT) technique

In situ fractionation and redox speciation of As in three different saline-alkaline lakes (green, black and crystalline lakes) in the Pantanal of Nhecolândia (Brazil) were performed by using Diffusive Gradients in Thin films (DGT). The results indicated that As is present mainly in dissolved form. T...

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Published in:Chemosphere (Oxford) 2022-02, Vol.288 (Pt 2), p.132592-132592, Article 132592
Main Authors: Elias, Lucas Pellegrini, Menegário, Amauri Antonio, Hernández, Amauris Hechavarría, Eismann, Carlos Eduardo, Martins Viana, José Lucas, Pedrobom, Jorge Henrique, Geraldo de Oliveira Junior, Edson, Barbiero, Laurent, Fostier, Anne Hélène
Format: Article
Language:English
Subjects:
Arsenic
Brazil
DGT
Dissolved Organic Matter
In situ measurements
Lakes
Organic matter
Oxidation-Reduction
Saline lakes
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Summary:In situ fractionation and redox speciation of As in three different saline-alkaline lakes (green, black and crystalline lakes) in the Pantanal of Nhecolândia (Brazil) were performed by using Diffusive Gradients in Thin films (DGT). The results indicated that As is present mainly in dissolved form. Total As concentration was similar when using different filter membranes, demonstrating that the species adsorbed by DGT devices were 10 kDa and
ISSN:0045-6535
1879-1298
DOI:10.1016/j.chemosphere.2021.132592