Speciation of butyltin derivatives in surface sediments of three southern Brazilian harbors
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Data
2010-09-15
Autores
de Oliveira, Cristiane Rossi
dos Santos, DayanaMoscardi
dos Santos Madureira, Luiz Augusto [UNESP]
Rodrigues de Marchi, Mary Rosa
Título da Revista
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Editor
Elsevier B.V.
Resumo
For the first time, organotin compounds were determined in surface sediment samples collected from Sao Francisco do Sul, Itajai-Navegantes and Imbituba Harbors, located in Santa Catarina State, Brazil. Butyltins (BTs) were determined by gas chromatography with a pulsed flame photometric detector (GC-PFPD) after being modified using the Grignard derivatization method. The concentrations of BTs derivatives ranged from n.d. to 1136.6 ng (Sn) g(-1) of dry weight (dw) sediment for tributyltin (TOT), n.d. to 394.4 ng (Sn)g(-1) dw for dibutyltin (DOT) and n.d. to 312.2 ng (Sn)g(-1) dw for monobutyltin (MBT). The highest concentration of total BTs was found at the Itajai-Acu River dockyard, indicating intense inputs of antifouling paints to the environment. The relative difference in the BTs levels is a particular characteristic of sediments from harbors and may be related to the shipyards and the boat traffic which still use TBT-based antifouling paints. (C) 2010 Elsevier B.V. All rights reserved.
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Butyltins, Sediments, Harbors, Santa Catarina
Como citar
Journal of Hazardous Materials. Amsterdam: Elsevier B.V., v. 181, n. 1-3, p. 851-856, 2010.