A link between lead and cadmium kinetic speciation in seawater and accumulation by the green alga Ulva lactuca
In this work, studies on the bioaccumulation of Cd and Pb by Ulva lactuca at different sites of Gulf San Jorge (Patagonia, Argentina) are presented. Higher values of bioaccumulated Cd were found in Punta Maqueda - a site believed to serve as a control - in comparison to those in Punta Borja, a place...
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todo:paper_02697491_v141_n1_p126_Muse2023-10-03T15:14:14Z A link between lead and cadmium kinetic speciation in seawater and accumulation by the green alga Ulva lactuca Muse, J.O. Carducci, C.N. Stripeikis, J.D. Tudino, M.B. Fernández, F.M. Cd and Pb Concentration factor Kinetic speciation Seawater Ulva lactuca Cd and Pb Concentration factor Kinetic speciation Ulva lactuca Algae Cadmium Graphite Lead Seawater cadmium graphite lead sea water bioaccumulation cadmium green alga Ladinian Argentina article atomic absorption spectrometry bioaccumulation calculation chemical analysis chemical environment chemical reaction kinetics concentration (parameters) fractionation furnace pollution sea pollution Ulva urban area Argentina Biodegradation, Environmental Cadmium Environmental Monitoring Environmental Pollution Flow Injection Analysis Industry Lead Metals, Heavy Seawater Spectrophotometry, Atomic Ulva Water Pollutants, Chemical Atlantic Ocean San Jorge Gulf algae Chlorophyta Ulva Ulva lactuca In this work, studies on the bioaccumulation of Cd and Pb by Ulva lactuca at different sites of Gulf San Jorge (Patagonia, Argentina) are presented. Higher values of bioaccumulated Cd were found in Punta Maqueda - a site believed to serve as a control - in comparison to those in Punta Borja, a place highly exposed to urban and industrial activities. Consequently; the labile fractions of Cd and Pb in seawater were determined with a flow injection-preconcentration manifold interfaced to a graphite furnace-atomic absorption spectrometer (FI-GFAAS). The results obtained by kinetic speciation showed that the variable that correctly explains heavy metals accumulation in the alga, is the labile metal fraction in seawater. We propose to use an enhancement ratio - on the basis of the kinetically labile metal fraction - for calculation of the metal accumulated by the alga relative to its environment. © 2005 Elsevier Ltd. All rights reserved. Fil:Stripeikis, J.D. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Tudino, M.B. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Fernández, F.M. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_02697491_v141_n1_p126_Muse |
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Universidad de Buenos Aires |
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I-28 |
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R-134 |
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Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) |
| topic |
Cd and Pb Concentration factor Kinetic speciation Seawater Ulva lactuca Cd and Pb Concentration factor Kinetic speciation Ulva lactuca Algae Cadmium Graphite Lead Seawater cadmium graphite lead sea water bioaccumulation cadmium green alga Ladinian Argentina article atomic absorption spectrometry bioaccumulation calculation chemical analysis chemical environment chemical reaction kinetics concentration (parameters) fractionation furnace pollution sea pollution Ulva urban area Argentina Biodegradation, Environmental Cadmium Environmental Monitoring Environmental Pollution Flow Injection Analysis Industry Lead Metals, Heavy Seawater Spectrophotometry, Atomic Ulva Water Pollutants, Chemical Atlantic Ocean San Jorge Gulf algae Chlorophyta Ulva Ulva lactuca |
| spellingShingle |
Cd and Pb Concentration factor Kinetic speciation Seawater Ulva lactuca Cd and Pb Concentration factor Kinetic speciation Ulva lactuca Algae Cadmium Graphite Lead Seawater cadmium graphite lead sea water bioaccumulation cadmium green alga Ladinian Argentina article atomic absorption spectrometry bioaccumulation calculation chemical analysis chemical environment chemical reaction kinetics concentration (parameters) fractionation furnace pollution sea pollution Ulva urban area Argentina Biodegradation, Environmental Cadmium Environmental Monitoring Environmental Pollution Flow Injection Analysis Industry Lead Metals, Heavy Seawater Spectrophotometry, Atomic Ulva Water Pollutants, Chemical Atlantic Ocean San Jorge Gulf algae Chlorophyta Ulva Ulva lactuca Muse, J.O. Carducci, C.N. Stripeikis, J.D. Tudino, M.B. Fernández, F.M. A link between lead and cadmium kinetic speciation in seawater and accumulation by the green alga Ulva lactuca |
| topic_facet |
Cd and Pb Concentration factor Kinetic speciation Seawater Ulva lactuca Cd and Pb Concentration factor Kinetic speciation Ulva lactuca Algae Cadmium Graphite Lead Seawater cadmium graphite lead sea water bioaccumulation cadmium green alga Ladinian Argentina article atomic absorption spectrometry bioaccumulation calculation chemical analysis chemical environment chemical reaction kinetics concentration (parameters) fractionation furnace pollution sea pollution Ulva urban area Argentina Biodegradation, Environmental Cadmium Environmental Monitoring Environmental Pollution Flow Injection Analysis Industry Lead Metals, Heavy Seawater Spectrophotometry, Atomic Ulva Water Pollutants, Chemical Atlantic Ocean San Jorge Gulf algae Chlorophyta Ulva Ulva lactuca |
| description |
In this work, studies on the bioaccumulation of Cd and Pb by Ulva lactuca at different sites of Gulf San Jorge (Patagonia, Argentina) are presented. Higher values of bioaccumulated Cd were found in Punta Maqueda - a site believed to serve as a control - in comparison to those in Punta Borja, a place highly exposed to urban and industrial activities. Consequently; the labile fractions of Cd and Pb in seawater were determined with a flow injection-preconcentration manifold interfaced to a graphite furnace-atomic absorption spectrometer (FI-GFAAS). The results obtained by kinetic speciation showed that the variable that correctly explains heavy metals accumulation in the alga, is the labile metal fraction in seawater. We propose to use an enhancement ratio - on the basis of the kinetically labile metal fraction - for calculation of the metal accumulated by the alga relative to its environment. © 2005 Elsevier Ltd. All rights reserved. |
| format |
JOUR |
| author |
Muse, J.O. Carducci, C.N. Stripeikis, J.D. Tudino, M.B. Fernández, F.M. |
| author_facet |
Muse, J.O. Carducci, C.N. Stripeikis, J.D. Tudino, M.B. Fernández, F.M. |
| author_sort |
Muse, J.O. |
| title |
A link between lead and cadmium kinetic speciation in seawater and accumulation by the green alga Ulva lactuca |
| title_short |
A link between lead and cadmium kinetic speciation in seawater and accumulation by the green alga Ulva lactuca |
| title_full |
A link between lead and cadmium kinetic speciation in seawater and accumulation by the green alga Ulva lactuca |
| title_fullStr |
A link between lead and cadmium kinetic speciation in seawater and accumulation by the green alga Ulva lactuca |
| title_full_unstemmed |
A link between lead and cadmium kinetic speciation in seawater and accumulation by the green alga Ulva lactuca |
| title_sort |
link between lead and cadmium kinetic speciation in seawater and accumulation by the green alga ulva lactuca |
| url |
http://hdl.handle.net/20.500.12110/paper_02697491_v141_n1_p126_Muse |
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