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Free Eu(III) Determination by Donnan Membrane Technique with Electrochemical Detection: Implementation and Evaluation

hal.structure.identifierLaboratoire Interdisciplinaire des Environnements Continentaux [LIEC]
hal.structure.identifierInteractions Sol Plante Atmosphère [UMR ISPA]
dc.contributor.authorJANOT, Noémie
hal.structure.identifierLaboratoire Interdisciplinaire des Environnements Continentaux [LIEC]
hal.structure.identifierWageningen University and Research [Wageningen] [WUR]
dc.contributor.authorGROENENBERG, Jan E.
hal.structure.identifierLaboratoire Interdisciplinaire des Environnements Continentaux [LIEC]
dc.contributor.authorOTERO-FARIÑA, Alba
hal.structure.identifierLaboratoire Interdisciplinaire des Environnements Continentaux [LIEC]
dc.contributor.authorPINHEIRO, José-Paulo
dc.date.accessioned2024-04-08T11:52:35Z
dc.date.available2024-04-08T11:52:35Z
dc.date.issued2021-02-17
dc.identifier.issn1380-6165
dc.identifier.urihttps://oskar-bordeaux.fr/handle/20.500.12278/195486
dc.description.abstractEnThe aim of this study was to develop an analytical method to determine free concentrations of Europium (Eu(III)) in natural waters. Europium(III) in solution was detected using cathodic stripping voltammetry after complexation with N-nitroso-N-phenylhydroxylamine (cupferron). Optimization of analytical parameters allowed us to detect nanomolar levels of Eu(III) in solution. Free Eu(III) in solution was measured using the Donnan membrane technique in which a natural solution (the "donor", containing various ligands) is separated from a ligand-free solution (the "acceptor") by a cation-exchange membrane. This membrane allows only non-colloidal cationic species to pass through it, and after an adequate time equilibrium is reached between both compartments. Total Eu(III) concentration can then be quantified in the acceptor solution and related to free Eu(III) in the natural sample. Due to its high valency, free Eu(III) tends to adsorb strongly to the cation-exchange membrane. In order to determine the physicochemical conditions minimizing this adsorption, we analyzed solutions of different Eu(III) and Ca(II) (as background ion) concentrations. Results showed that 100 mM of Ca(II) were necessary to make adsorption of Eu(III) onto the membrane negligible. The optimized setup was then used to quantify Eu(III) complexation in a Eu(III)-dissolved organic matter solution.
dc.description.sponsorshipStrategic metal resources of the 21st century - ANR-10-LABX-0021
dc.language.isoen
dc.publisherSpringer Verlag
dc.rights.urihttp://creativecommons.org/licenses/by/
dc.subject.enTrivalent ions
dc.subject.enCathodic stripping voltammetry (CSV)
dc.subject.enTrace metal speciation
dc.subject.enDissolved organic matter (DOM)
dc.subject.enSaline conditions
dc.subject.enEuropium
dc.title.enFree Eu(III) Determination by Donnan Membrane Technique with Electrochemical Detection: Implementation and Evaluation
dc.typeArticle de revue
dc.identifier.doi10.1007/s10498-021-09392-4
dc.subject.halChimie/Chimie analytique
dc.subject.halPlanète et Univers [physics]/Sciences de la Terre/Géochimie
dc.subject.halPlanète et Univers [physics]/Interfaces continentales, environnement
bordeaux.journalAquatic Geochemistry
bordeaux.page127–140
bordeaux.volume27
bordeaux.hal.laboratoriesInteractions Soil Plant Atmosphere (ISPA) - UMR 1391*
bordeaux.institutionBordeaux Sciences Agro
bordeaux.institutionINRAE
bordeaux.peerReviewedoui
hal.identifierhal-03145175
hal.version1
hal.popularnon
hal.audienceInternationale
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-03145175v1
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