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http://hdl.handle.net/10773/5495
Title: | Differences between humic substances from riverine, estuarine, and marine environments observed by fluorescence spectroscopy |
Author: | Esteves, V. I. Duarte, A. C. |
Keywords: | Fulvic Acid XAD-4 openAccess Natural Organic Matter |
Issue Date: | 2001 |
Abstract: | Sixteen samples of fulvic acids and XAD-4 fractions of riverine, estuarine, coastal, and open ocean origin have been studied by emission and synchronous molecular fluorescence spec- troscopy. Certain features of the molecular fluorescence are related to the nature, the con- tent, and the origin of those aquatic humic substances (HS). Riverine HS appear several times richer in fluorophores than marine HS, which can be well observed by emission fluo- rescence spectroscopy. Synchronous-scan spectra of fulvic acids and of XAD-4 fractions from the aquatic environments studied, emphasized the quality differences of their fluoro- phores.These features are useful as tracers of humic substances related with their natural environment source or even with their anthropogenic origin |
Peer review: | yes |
URI: | http://hdl.handle.net/10773/5495 |
ISSN: | 0323-4320 |
Appears in Collections: | DQ - Artigos PT Mar - Artigos Ria de Aveiro - Artigos |
Files in This Item:
File | Description | Size | Format | |
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Differences_Humics_Fluorescence.pdf | 2.18 MB | Adobe PDF | ||
Differences between Humic Substances from.pdf | 508.81 kB | Adobe PDF |
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