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oai:recercat.cat:10459.1/650182024-12-05T21:54:28Zcom_2072_3622col_2072_479130

A review on electrochemical methods for trace metal speciation in environmental media Companys Ferran, Encarnació Galceran i Nogués, Josep Pinheiro, Jose Paulo Puy Llorens, Jaume Salaün, Pascal Speciation Electroanalysis Electrochemistry Availability Trace metal speciation is key to understand/predict bioavailability and potential toxicity of metals to biota and will, undoubtedly, be incorporated in future regulations. Electroanalytical methods have a role to play in such development: they offer a wide range of advantages such as speed, portability, economy, solid interpretation backgrounds and low limits of quantification. This review focusses on three selected stripping techniques: Competitive-Ligand Exchange - Cathodic Stripping Voltammetry (CLE-CSV), Scanned Stripping Chrono-Potentiometry (SSCP) and AGNES (Absence of Gradients and Nernstian Equilibrium Stripping) reporting their working principles, characteristics (strong and weak points) and recent applications to systems of environmental relevance (such as seawaters, freshwaters or soil extracts). The authors from the Universitat de Lleida gratefully acknowledge financial support from the Spanish Ministry MINECO (Project CTM2016-78798). 2018-10-31T11:39:54Z 2019-09-27T22:27:01Z 2017 2018-10-31T11:39:56Z info:eu-repo/semantics/article acceptedVersion https://doi.org/10.1016/j.coelec.2017.09.007 2451-9103 http://hdl.handle.net/10459.1/65018 http://hdl.handle.net/10459.1/65018 eng info:eu-repo/grantAgreement/MINECO//CTM2016-78798/ES/ Versió postprint del document publicat a: https://doi.org/10.1016/j.coelec.2017.09.007 Current Opinion in Electrochemistry, 2017, vol. 3, núm. 1, p. 144-162 cc-by-nc-nd (c) Elsevier, 2017 info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by-nc-nd/4.0/ application/pdf Elsevier