AGNES in irreversible systems: The indium case

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dc.contributor.authorGalceran i Nogués, Josep
dc.contributor.authorCompanys Ferran, Encarnació
dc.contributor.authorPuy Llorens, Jaume
dc.contributor.authorPinheiro, Jose Paulo
dc.contributor.authorRotureau, Elise
dc.date.accessioned2021-12-03T11:40:42Z
dc.date.available2021-12-03T11:40:42Z
dc.date.issued2021
dc.description.abstractFree indium concentrations can be determined using AGNES (Absence of Gradients and Nernstian Equilibrium Stripping) with no relevant hindrance from the irreversibility of the In3+/In° redox couple at a mercury electrode. The electroactivity, high lability and mobility of the In hydroxy species help in reaching AGNES conditions for a relatively moderate ratio (deposition time):(gain), which decreases with increasing pH due to the growing contribution of the hydroxy species. In the related technique SSCP (Scanned Stripping ChronoPotentiometry), points corresponding to more positive deposition potentials are said to be “at the foot of the wave”. Some of these points can reach equilibrium along the fixed SSCP deposition time, so that these points are effectively AGNES experiments, and free metal ion concentrations (such as those of free indium) can also be computed from them provided sufficiently accurate data are available. A new representation of the SSCP wave allows for the diagnosis of the potential region where AGNES conditions are fulfilled.ca_ES
dc.format.extent10 p.ca_ES
dc.identifier.doihttps://doi.org/10.1016/j.jelechem.2021.115750
dc.identifier.idgrec032147
dc.identifier.issn1572-6657
dc.identifier.urihttp://hdl.handle.net/10459.1/72483
dc.language.isoengca_ES
dc.publisherElsevierca_ES
dc.relation.isformatofReproducció del document publicat a https://doi.org/10.1016/j.jelechem.2021.115750ca_ES
dc.relation.ispartofJournal of electroanalytical chemistry, 2021, vol. 901, núm. 115750, p. 1-10ca_ES
dc.rightscc-by (c) Galzeran et al., 2021ca_ES
dc.rights.accessRightsinfo:eu-repo/semantics/openAccessca_ES
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/*
dc.subjectAGNESca_ES
dc.subjectSSCPca_ES
dc.subjectPotentiometric stripping analysisca_ES
dc.subjectPseudopolarograpyca_ES
dc.subjectComplexationca_ES
dc.subjectIndiumca_ES
dc.subject.otherBiodisponibilitatca_ES
dc.titleAGNES in irreversible systems: The indium caseca_ES
dc.typeinfo:eu-repo/semantics/articleca_ES
dc.type.versioninfo:eu-repo/semantics/publishedVersionca_ES
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