Please use this identifier to cite or link to this item: http://repositorio.unicamp.br/jspui/handle/REPOSIP/69310
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, AH
Bellin, IC
Lobo, FA
Fraceto, LF
Roveda, JAF
Romao, LPC
Dias, NL
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.
Subject: lability
metals
aquatic organic matter
water
speciation
Country: Alemanha
Editor: Springer Heidelberg
Rights: fechado
Identifier DOI: 10.1007/s00216-007-1789-7
Date Issue: 2008
Appears in Collections:Artigos e Materiais de Revistas Científicas - Unicamp

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