Artigo
Caracterização estrutural de substâncias húmicas aquáticas extraídas dos rios Itapanhaú e Ribeira de Iguape
Registro en:
Química Nova, v. 34, n. 5, p. 753-758, 2011.
0100-4042
ISSN0100-4042-2011-34-05-753-758.pdf
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0000-0002-2042-018X
Autor
Goveia, Danielle [UNESP]
Rocha, Julio Cesar [UNESP]
Oliveira, Luciana Camargo de
Morais, Leandro Cardoso de
Campos, Valquiria de
Fraceto, Leonardo Fernandes
Rosa, André Henrique [UNESP]
Resumen
The knowledge of the structure characteristic of the Organic Matter is important for the understanding of the natural process. In this context aquatic humic substances (principal fraction) were isolated from water sample collected from the two distinct rivers, using procedure recommended for International Humic Substances Society and characterized by elemental analysis, electron paramagnetic resonance and nuclear magnetic resonance (13C NMR). The results were interpreted using principal component analysis (PCA) and the statistical analyses showed different in the structural characteristics of the aquatic humic substances studied. Universidade Estadual Paulista Júlio de Mesquita Filho, Departamento de Engenharia Ambiental, Sorocaba, Av. Três de Março, 511, Alto da Boa Vista, CEP 18087180, SP, Brasil Instituto de Química, Universidade Estadual Paulista, R. Francisco Degni, s/n, 14800-900 Araraquara - SP, Brasil Departamento de Engenharia Ambiental, Universidade Estadual Paulista, Av. 3 de Março, 511, 18087-180 Sorocaba - SP, Brasil