Análise de fluorescência de substâncias húmicas extraídas da água, solo e sedimento da Lagoa dos Patos - MS

Química Nova

Júlio César Rodrigues De Azevedo²  Jorge Nozaki¹ 

[1] ,Universidade Tecnológica Federal do Paraná Departamento Acadêmico de Química e Biologia Curitiba PR ,Brasil

关键词: fluorescence;    humic acid;    fulvic acid;   

DOI  :  10.1590/S0100-40422008000600010

来源: SciELO

【 摘 要 】

The humic substances were extracted from sediments, water and soil close to the Lagoa dos Patos-MS. The characterization was performed through fluorescence emission. In the HSs it is possible to see strong indications of incorporation of compounds originating from lignin degradation, confirmed by fluorescence emission (EEM and synchronous spectra). These differences observed in HSs may be due to tropical regions displaying a great variety of vascular plants and aquatic macrophytes that contribute natural organic matter. The seasonality effect also causes the entrance of pedogenic material and the suspension of sediments by the action of winds.

【 授权许可】

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