Electroanalysis · 2010 · 49 citations · 36 references
Natural SciencesChemistryMaterials ScienceAnalytical ChemistryElectroanalytical MethodsElectrochemistryElectroanalytical ChemistryElectrochemical DetectionElectrochemical Impedance SpectroscopyElectrode MaterialsElectrode-electrolyte InterfacesWorking ElectrodesAcetate BuffersBismuth Film ElectrodesBovine Serum AlbuminElectrochemical CharacterizationElectrochemical Impedance AnalysisElectrochemical Impedance MonitoringPolymer ElectrodesVoltammetric Sensing
Abstract Bismuth films (BiF) deposited in situ on graphite‐polyurethane composite electrodes were successfully used for the determination of Zn, Cd, Pb, Cu and Hg, simultaneously in acetate buffer solution pH 4.5 using square wave anodic stripping voltammetry. It is possible to determine metals reoxidized at potentials more negative and more positive than Bi using in situ deposited BiF; reoxidation was studied by electrochemical impedance spectroscopy. The BiF‐modified electrode was applied to analyse tap water. The influence of surface‐active compounds, Triton X‐100 and bovine serum albumin, on the stripping of these metals was investigated; Nafion coatings did not significantly improve the performance.
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Bismuth-Coated Carbon Electrodes for Anodic Stripping Voltammetry
Joseph Wang, Jianmin Lu, Samo B. Hočevar et al. · Analytical Chemistry · 2000 · 998 citations