Artículos de revistas
Caracterização estrutural das substâncias húmicas aquáticas extraídas dos rios itapanhaú e ribeira de iguape
Fecha
2011-01-01Registro en:
Química Nova. Sociedade Brasileira de Química, v. 34, n. 5, p. 753-758, 2011.
0100-4042
10.1590/S0100-40422011000500005
S0100-40422011000500005
WOS:000293092400005
S0100-40422011000500005.pdf
4148837403618207
9900570420098740
0000-0002-2042-018X
0000-0003-1468-5453
Autor
Universidade Estadual Paulista (Unesp)
Universidade Federal de São Carlos (UFSCar)
Institución
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.