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Type: Artigo de periódico
Title: In Situ Application Of A Cellulose Bag And An Ion Exchanger For Differentiation Of Labile And Inert Metal Species In Aquatic Systems
Author: Goveia D.
Rosa A.H.
Bellin I.C.
Lobo F.A.
Fraceto L.F.
Roveda J.A.F.
Romao L.P.C.
Filho N.L.D.
Abstract: This work involved the development and application of a new analytical procedure for in-situ characterization of the lability of metal species in aquatic systems by using a system equipped with a diffusion membrane and cellulose organomodified with p-aminobenzoic acid groups (DM-Cell-PAB). To this end, the DM-Cell-PAB system was prepared by adding cellulose organomodified with p-aminobenzoic acid groups (Cell-PAB) to pre-purified cellulose bags. After the DM-Cell-PAB system was sealed, it was examined in the laboratory. The in-situ application involved immersing the DM-Cell-PAB system in two different rivers, enabling us to study the relative lability of metal species (Cu, Cd, Fe, Mn, and Ni) as a function of time and quantity of exchanger. The procedure is simple and opens up a new perspective for understanding environmental phenomena relating to the complexation, transport, stability, and lability of metal species in aquatic systems rich in organic matter. © 2007 Springer-Verlag.
Rights: fechado
Identifier DOI: 10.1007/s00216-007-1789-7
Date Issue: 2008
Appears in Collections:Unicamp - Artigos e Outros Documentos

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