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

Abstract : 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).
Keywords : heavy metal electrochemistry electroanalysis availability speciation Screen-Printed SPE Sequential Injection Analysis SIA Stripping ChronoPotentiometry SCP Salicylaldoxime Salinity SA S Resin Titration technique RT Quantum Dot QD 4-bis(2hydroxypropanesulfonic acid) Piperazine-1 POPSO Poly(N-isopropylacrylamide) PNIPAM Pyridinedicarboxylic acid PDCA Organisation for Economic Cooperation and Development OECD Nitrilotriacetic Acid NTA Nanoparticles NP Natural Organic Matter NOM 1-Nitroso-2-naphthol NN Non-Ideal Competitive Adsorption NICA 3-(N-morpholino)propanesulfonic acid MOPS 2-(N-morpholino)-ethanesulfonic acid MES Limit of Detection LOD Ion Selective Electrode ISE Ionic strength I Humic Substances HS Hanging Mercury Drop Electrode HMDE N-2-Hydroxyethylpiperazine-N -2 -ethanesulfonic acid HEPES Glutathione GSH Free Ion Activity Model FIAM Environmental Quality Standard EQS Extracellular polymeric substances EPS 4-(2-Hydroxyethyl)-1-piperazinepropanesulfonic acid EPPS Ethylenediaminetetraacetic acid EDTA Differential Pulse Polarogram DPP Dissolved Organic Matter DOM Dissolved Organic Carbon DOC Donnan Membrane Technique DMT Dimethylglyoxime DMG Dulbecco's modified Eagle's medium DMEM 3-dihydroxynaphthalene 2 DHN CSV Cathodic Stripping Voltammetry Competitive Ligand Exchange CLE Biotic Ligand Model BLM Bismuth Film Electrode BiFE Anodic Stripping Voltammetry ASV Ammonium 1-pyrrolidinedithiocarbamate APDC Absence of Gradients and Nernstian Equilibrium Stripping AGNES Atomic Fluorescence Spectroscopy AFS Adsorptive Cathodic Stripping Voltammetry J AdCSV Galceran
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Contributor : Jose Paulo Pinheiro <>
Submitted on : Tuesday, February 23, 2021 - 5:13:14 PM
Last modification on : Friday, February 26, 2021 - 3:12:04 PM
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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, Elsevier, 2017, 3 (1), pp.144-162. ⟨10.1016/j.coelec.2017.09.007⟩. ⟨hal-03150307⟩



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