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Journal Articles Current Opinion in Electrochemistry Year : 2017

A review on electrochemical methods for trace metal speciation in environmental media


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).


Extracellular polymeric substances EQS Environmental Quality Standard FIAM Free Ion Activity Model GSH Glutathione HEPES N-2-Hydroxyethylpiperazine-N -2 -ethanesulfonic acid HMDE Hanging Mercury Drop Electrode HS Humic Substances I Ionic strength ISE Ion Selective Electrode LOD Limit of Detection MES 2-(N-morpholino)-ethanesulfonic acid MOPS 3-(N-morpholino)propanesulfonic acid NICA Non-Ideal Competitive Adsorption NN 1-Nitroso-2-naphthol NOM Natural Organic Matter NP Nanoparticles NTA Nitrilotriacetic Acid OECD Organisation for Economic Cooperation and Development PDCA Pyridinedicarboxylic acid PNIPAM Poly(N-isopropylacrylamide) POPSO Piperazine-1 4-bis(2hydroxypropanesulfonic acid) QD Quantum Dot RT Resin Titration technique S Salinity SA Salicylaldoxime SCP Stripping ChronoPotentiometry SIA Sequential Injection Analysis SPE Screen-Printed speciation availability electroanalysis electrochemistry heavy metal Galceran J AdCSV Adsorptive Cathodic Stripping Voltammetry AFS Atomic Fluorescence Spectroscopy AGNES Absence of Gradients and Nernstian Equilibrium Stripping APDC Ammonium 1-pyrrolidinedithiocarbamate ASV Anodic Stripping Voltammetry BiFE Bismuth Film Electrode BLM Biotic Ligand Model CLE Competitive Ligand Exchange CSV Cathodic Stripping Voltammetry DHN 2 3-dihydroxynaphthalene DMEM Dulbecco's modified Eagle's medium DMG Dimethylglyoxime DMT Donnan Membrane Technique DOC Dissolved Organic Carbon DOM Dissolved Organic Matter DPP Differential Pulse Polarogram EDTA Ethylenediaminetetraacetic acid EPPS 4-(2-Hydroxyethyl)-1-piperazinepropanesulfonic acid EPS
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hal-03150307 , version 1 (23-02-2021)



E. Companys, J. Galceran, J.P. Pinheiro, J. Puy, Pascal Salaün. A review on electrochemical methods for trace metal speciation in environmental media. Current Opinion in Electrochemistry, 2017, 3 (1), pp.144-162. ⟨10.1016/j.coelec.2017.09.007⟩. ⟨hal-03150307⟩
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