In situ application of a cellulose bag and an ion exchanger for differentiation of labile and inert metal species in aquatic systems.
Anal Bioanal Chem
; 390(4): 1173-80, 2008 Feb.
Article
em En
| MEDLINE
| ID: mdl-18157665
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.
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Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Água
/
Celulose
/
Resinas de Troca Iônica
/
Metais
Idioma:
En
Revista:
Anal Bioanal Chem
Ano de publicação:
2008
Tipo de documento:
Article
País de afiliação:
Brasil
País de publicação:
Alemanha