Determination of free Zn2+ concentration in synthetic and natural samples with AGNES (Absence of Gradients and Nernstian Equilibrium Stripping) and DMT (Donnan Membrane Technique)

The determination of free Zn2+ ion concentration is a key in the study of environmental systems like river water and soils, due to its impact on bioavailability and toxicity. AGNES (Absence of Gradients and Nernstian Equilibrium Stripping) and DMT (Donnan Membrane Technique) are emerging techniques...

Descripción completa

Detalles Bibliográficos
Autores: Chito Trujillo, Diana Maria, Weng, Liping, Galceran i Nogués, Josep, Companys Ferran, Encarnació, Puy Llorens, Jaume, Riemsdijk, Willem H. van, Leeuwen, Herman P. van
Tipo de recurso: artículo
Estado:Versión aceptada para publicación
Fecha de publicación:2012
País:España
Institución:Universitat de Lleida (UdL)
Repositorio:Repositori Obert UdL
OAI Identifier:oai:repositori.udl.cat:10459.1/48922
Acceso en línea:https://doi.org/10.1016/j.scitotenv.2012.01.052
http://hdl.handle.net/10459.1/48922
Access Level:acceso abierto
Palabra clave:AGNES
DMT
Speciation techniques
FIAM
Zinc
id ES_32e4eacc3ea2505d5114cd9de45e2b3b
oai_identifier_str oai:repositori.udl.cat:10459.1/48922
network_acronym_str ES
network_name_str España
repository_id_str
spelling Determination of free Zn2+ concentration in synthetic and natural samples with AGNES (Absence of Gradients and Nernstian Equilibrium Stripping) and DMT (Donnan Membrane Technique)Chito Trujillo, Diana MariaWeng, LipingGalceran i Nogués, JosepCompanys Ferran, EncarnacióPuy Llorens, JaumeRiemsdijk, Willem H. vanLeeuwen, Herman P. vanAGNESDMTSpeciation techniquesFIAMZincZincThe determination of free Zn2+ ion concentration is a key in the study of environmental systems like river water and soils, due to its impact on bioavailability and toxicity. AGNES (Absence of Gradients and Nernstian Equilibrium Stripping) and DMT (Donnan Membrane Technique) are emerging techniques suited for the determination of free heavy metal concentrations, especially in the case of Zn2+, given that there is no commercial Ion Selective Electrode. In this work, both techniques have been applied to synthetic samples (containing Zn and NTA) and natural samples (Rhine river water and soils), showing good agreement. pH fluctuations in DMT and N2/CO2 purging system used in AGNES did not affect considerably the measurements done in Rhine river water and soil samples. Results of DMT in situ of Rhine river water are comparable to those of AGNES in the lab. The comparison of this work provides a cross-validation for both techniques.Elsevier2012info:eu-repo/semantics/articleinfo:eu-repo/semantics/acceptedVersionapplication/pdfhttps://doi.org/10.1016/j.scitotenv.2012.01.052http://hdl.handle.net/10459.1/48922reponame:Repositori Obert UdL instname:Universitat de Lleida (UdL)InglésVersió postprint del document publicat a: https://doi.org/10.1016/j.scitotenv.2012.01.052Science of the Total Environment, 2012, vol. 421-422, num. April, p. 238-244(c) Elsevier, 2012info:eu-repo/semantics/openAccessoai:repositori.udl.cat:10459.1/489222026-06-24T12:42:17Z
dc.title.none.fl_str_mv Determination of free Zn2+ concentration in synthetic and natural samples with AGNES (Absence of Gradients and Nernstian Equilibrium Stripping) and DMT (Donnan Membrane Technique)
title Determination of free Zn2+ concentration in synthetic and natural samples with AGNES (Absence of Gradients and Nernstian Equilibrium Stripping) and DMT (Donnan Membrane Technique)
spellingShingle Determination of free Zn2+ concentration in synthetic and natural samples with AGNES (Absence of Gradients and Nernstian Equilibrium Stripping) and DMT (Donnan Membrane Technique)
Chito Trujillo, Diana Maria
AGNES
DMT
Speciation techniques
FIAM
Zinc
Zinc
title_short Determination of free Zn2+ concentration in synthetic and natural samples with AGNES (Absence of Gradients and Nernstian Equilibrium Stripping) and DMT (Donnan Membrane Technique)
title_full Determination of free Zn2+ concentration in synthetic and natural samples with AGNES (Absence of Gradients and Nernstian Equilibrium Stripping) and DMT (Donnan Membrane Technique)
title_fullStr Determination of free Zn2+ concentration in synthetic and natural samples with AGNES (Absence of Gradients and Nernstian Equilibrium Stripping) and DMT (Donnan Membrane Technique)
title_full_unstemmed Determination of free Zn2+ concentration in synthetic and natural samples with AGNES (Absence of Gradients and Nernstian Equilibrium Stripping) and DMT (Donnan Membrane Technique)
title_sort Determination of free Zn2+ concentration in synthetic and natural samples with AGNES (Absence of Gradients and Nernstian Equilibrium Stripping) and DMT (Donnan Membrane Technique)
dc.creator.none.fl_str_mv Chito Trujillo, Diana Maria
Weng, Liping
Galceran i Nogués, Josep
Companys Ferran, Encarnació
Puy Llorens, Jaume
Riemsdijk, Willem H. van
Leeuwen, Herman P. van
author Chito Trujillo, Diana Maria
author_facet Chito Trujillo, Diana Maria
Weng, Liping
Galceran i Nogués, Josep
Companys Ferran, Encarnació
Puy Llorens, Jaume
Riemsdijk, Willem H. van
Leeuwen, Herman P. van
author_role author
author2 Weng, Liping
Galceran i Nogués, Josep
Companys Ferran, Encarnació
Puy Llorens, Jaume
Riemsdijk, Willem H. van
Leeuwen, Herman P. van
author2_role author
author
author
author
author
author
dc.subject.none.fl_str_mv AGNES
DMT
Speciation techniques
FIAM
Zinc
Zinc
topic AGNES
DMT
Speciation techniques
FIAM
Zinc
Zinc
description The determination of free Zn2+ ion concentration is a key in the study of environmental systems like river water and soils, due to its impact on bioavailability and toxicity. AGNES (Absence of Gradients and Nernstian Equilibrium Stripping) and DMT (Donnan Membrane Technique) are emerging techniques suited for the determination of free heavy metal concentrations, especially in the case of Zn2+, given that there is no commercial Ion Selective Electrode. In this work, both techniques have been applied to synthetic samples (containing Zn and NTA) and natural samples (Rhine river water and soils), showing good agreement. pH fluctuations in DMT and N2/CO2 purging system used in AGNES did not affect considerably the measurements done in Rhine river water and soil samples. Results of DMT in situ of Rhine river water are comparable to those of AGNES in the lab. The comparison of this work provides a cross-validation for both techniques.
publishDate 2012
dc.date.none.fl_str_mv 2012
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/acceptedVersion
format article
status_str acceptedVersion
dc.identifier.none.fl_str_mv https://doi.org/10.1016/j.scitotenv.2012.01.052
http://hdl.handle.net/10459.1/48922
url https://doi.org/10.1016/j.scitotenv.2012.01.052
http://hdl.handle.net/10459.1/48922
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv Versió postprint del document publicat a: https://doi.org/10.1016/j.scitotenv.2012.01.052
Science of the Total Environment, 2012, vol. 421-422, num. April, p. 238-244
dc.rights.none.fl_str_mv (c) Elsevier, 2012
info:eu-repo/semantics/openAccess
rights_invalid_str_mv (c) Elsevier, 2012
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Elsevier
publisher.none.fl_str_mv Elsevier
dc.source.none.fl_str_mv reponame:Repositori Obert UdL
instname:Universitat de Lleida (UdL)
instname_str Universitat de Lleida (UdL)
reponame_str Repositori Obert UdL
collection Repositori Obert UdL
repository.name.fl_str_mv
repository.mail.fl_str_mv
_version_ 1869405703995654144
score 15,811543

Similares en LA Referencia