STUDY OF CHEMICAL SPECIATION IN SEDIMENTS: AN APPROACH TO VERTICAL METALS DISTRIBUTION IN RAPEL RESERVOIR (CHILE)

A sequential chemical extraction method, following a Tessier's protocol has been applied to sample sediment from lake Rapel (34S), an hydroelectric reservoir. This study is a first approach of chemical speciation in this sediment. The four elements determined in the extracts were Cu, Zn, Mn and...

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Autores principales:	PIZARRO,JAIME, RUBIO,M. ANGELICA, CASTILLO,XIMENA
Lenguaje:	English
Publicado:	Sociedad Chilena de Química 2003
Materias:	sediment sequential extraction metal speciation trace metal Rapel reservoir
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-97072003000300009
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spelling	oai:scielo:S0717-970720030003000092004-01-30STUDY OF CHEMICAL SPECIATION IN SEDIMENTS: AN APPROACH TO VERTICAL METALS DISTRIBUTION IN RAPEL RESERVOIR (CHILE)PIZARRO,JAIMERUBIO,M. ANGELICACASTILLO,XIMENA sediment sequential extraction metal speciation trace metal Rapel reservoir A sequential chemical extraction method, following a Tessier's protocol has been applied to sample sediment from lake Rapel (34S), an hydroelectric reservoir. This study is a first approach of chemical speciation in this sediment. The four elements determined in the extracts were Cu, Zn, Mn and Fe. Analysis of the extracts was carried out by flame atomic absorption spectrometry (FAAS) and X-Ray fluorescence. The sample sediment was extracted using a core from 1 cm to 40 cm and the level concentration range were: Fe (19850 mg/g - 43899 mg/g), Mn (752 mg/g - 1269 mg/g), Cu (149 mg/g - 478 mg/g) and Zn (224 mg/g - 596 mg/g). Cu was associated to organic matter and carbonate fraction, Zn was associated to oxides Fe-Mn and Fe and Mn were bonding to oxides. All the metals show significant concentration in residual fraction except Cuinfo:eu-repo/semantics/openAccessSociedad Chilena de QuímicaJournal of the Chilean Chemical Society v.48 n.3 20032003-09-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-97072003000300009en10.4067/S0717-97072003000300009
institution	Scielo Chile
collection	Scielo Chile
language	English
topic	sediment sequential extraction metal speciation trace metal Rapel reservoir
spellingShingle	sediment sequential extraction metal speciation trace metal Rapel reservoir PIZARRO,JAIME RUBIO,M. ANGELICA CASTILLO,XIMENA STUDY OF CHEMICAL SPECIATION IN SEDIMENTS: AN APPROACH TO VERTICAL METALS DISTRIBUTION IN RAPEL RESERVOIR (CHILE)
description	A sequential chemical extraction method, following a Tessier's protocol has been applied to sample sediment from lake Rapel (34S), an hydroelectric reservoir. This study is a first approach of chemical speciation in this sediment. The four elements determined in the extracts were Cu, Zn, Mn and Fe. Analysis of the extracts was carried out by flame atomic absorption spectrometry (FAAS) and X-Ray fluorescence. The sample sediment was extracted using a core from 1 cm to 40 cm and the level concentration range were: Fe (19850 mg/g - 43899 mg/g), Mn (752 mg/g - 1269 mg/g), Cu (149 mg/g - 478 mg/g) and Zn (224 mg/g - 596 mg/g). Cu was associated to organic matter and carbonate fraction, Zn was associated to oxides Fe-Mn and Fe and Mn were bonding to oxides. All the metals show significant concentration in residual fraction except Cu
author	PIZARRO,JAIME RUBIO,M. ANGELICA CASTILLO,XIMENA
author_facet	PIZARRO,JAIME RUBIO,M. ANGELICA CASTILLO,XIMENA
author_sort	PIZARRO,JAIME
title	STUDY OF CHEMICAL SPECIATION IN SEDIMENTS: AN APPROACH TO VERTICAL METALS DISTRIBUTION IN RAPEL RESERVOIR (CHILE)
title_short	STUDY OF CHEMICAL SPECIATION IN SEDIMENTS: AN APPROACH TO VERTICAL METALS DISTRIBUTION IN RAPEL RESERVOIR (CHILE)
title_full	STUDY OF CHEMICAL SPECIATION IN SEDIMENTS: AN APPROACH TO VERTICAL METALS DISTRIBUTION IN RAPEL RESERVOIR (CHILE)
title_fullStr	STUDY OF CHEMICAL SPECIATION IN SEDIMENTS: AN APPROACH TO VERTICAL METALS DISTRIBUTION IN RAPEL RESERVOIR (CHILE)
title_full_unstemmed	STUDY OF CHEMICAL SPECIATION IN SEDIMENTS: AN APPROACH TO VERTICAL METALS DISTRIBUTION IN RAPEL RESERVOIR (CHILE)
title_sort	study of chemical speciation in sediments: an approach to vertical metals distribution in rapel reservoir (chile)
publisher	Sociedad Chilena de Química
publishDate	2003
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-97072003000300009
work_keys_str_mv	AT pizarrojaime studyofchemicalspeciationinsedimentsanapproachtoverticalmetalsdistributioninrapelreservoirchile AT rubiomangelica studyofchemicalspeciationinsedimentsanapproachtoverticalmetalsdistributioninrapelreservoirchile AT castilloximena studyofchemicalspeciationinsedimentsanapproachtoverticalmetalsdistributioninrapelreservoirchile
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STUDY OF CHEMICAL SPECIATION IN SEDIMENTS: AN APPROACH TO VERTICAL METALS DISTRIBUTION IN RAPEL RESERVOIR (CHILE)

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