Humic substances from sediments of Lobos Pond (Argentina). Isolation, characterization and limnological implications

Choconi, R.G. - Ghini, A.A. - Conzonno, V.H. - Cirelli, A.F.

En:

Ecletica Quim. 2011;36(2):128-141

Fecha:

2011

Formato:

application/pdf

Tipo de documento:

info:eu-repo/semantics/article
info:ar-repo/semantics/artículo
info:eu-repo/semantics/publishedVersion

Descriptores:

Argentina - Humic substances - Isolation - Pampasic ponds - Sediment

Descripción:

Humic substances (HS) were isolated from the sediments of Lobos Pond (Argentina) using mild conditions to preserve their native structure. The HS (humic and fulvic acids) were characterized by means of elemental analysis and FTIR spectroscopy. Also a by-product obtained during fulvic acids (FA) fractionation (an amorphous white solid residue) was analyzed. Results revealed possible interactions between FA and inorganic-organic substances that may have implications referring to bioavailability. Other limnological implications, such as autochtonous origin of HS linked with the hydrology, and change of pH during stormy weather that affects HS interactions, are discussed.
Fil:Ghini, A.A. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina.
Fil:Conzonno, V.H. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina.

Identificador(es):

http://hdl.handle.net/20.500.12110/paper_01004670_v36_n2_p128_Choconi

Derechos:

info:eu-repo/semantics/openAccess
http://creativecommons.org/licenses/by/2.5/ar

Descargar texto: paper_01004670_v36_n2_p128_Choconi.oai

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Cita bibliográfica:

Choconi, R.G. (2011). Humic substances from sediments of Lobos Pond (Argentina). Isolation, characterization and limnological implications (info:eu-repo/semantics/article). [consultado: ] Disponible en el Repositorio Digital Institucional de la Universidad de Buenos Aires: <http://repositoriouba.sisbi.uba.ar/gsdl/cgi-bin/library.cgi?a=d&c=artiaex&cl=CL1&d=paper_01004670_v36_n2_p128_Choconi_oai>