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dc.contributor.authorChito Trujillo, Diana Maria
dc.contributor.authorWeng, Liping
dc.contributor.authorGalceran i Nogués, Josep
dc.contributor.authorCompanys Ferran, Encarnació
dc.contributor.authorPuy Llorens, Jaume
dc.contributor.authorRiemsdijk, Willem H. van
dc.contributor.authorLeeuwen, Herman P. van
dc.date.accessioned2015-11-06T09:15:21Z
dc.date.available2015-11-06T09:15:21Z
dc.date.issued2012-04-01
dc.identifier.issn0048-9697
dc.identifier.urihttp://hdl.handle.net/10459.1/48922
dc.description.abstractThe 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.
dc.format.mimetypeapplication/pdf
dc.language.isoeng
dc.publisherElsevier
dc.relation.isformatofVersió postprint del document publicat a: https://doi.org/10.1016/j.scitotenv.2012.01.052
dc.relation.ispartofScience of the Total Environment, 2012, vol. 421-422, num. April, p. 238-244
dc.rights(c) Elsevier, 2012
dc.subjectAGNES
dc.subjectDMT
dc.subjectSpeciation techniques
dc.subjectFIAM
dc.subject.classificationZinc
dc.subject.otherZinc
dc.titleDetermination of free Zn2+ concentration in synthetic and natural samples with AGNES (Absence of Gradients and Nernstian Equilibrium Stripping) and DMT (Donnan Membrane Technique)
dc.typeinfo:eu-repo/semantics/article
dc.date.updated2015-11-06T09:15:21Z
dc.identifier.idgrec018048
dc.type.versioninfo:eu-repo/semantics/acceptedVersion
dc.rights.accessRightsinfo:eu-repo/semantics/openAccess
dc.identifier.doihttps://doi.org/10.1016/j.scitotenv.2012.01.052


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