Electroanalysis · 2013 · 62 citations · 33 references
Natural SciencesChemistryMaterials ScienceAnalytical ChemistryElectroanalytical MethodsElectrochemistryCarbon NanotubesElectroanalytical ChemistryElectrochemical DetectionElectrode MaterialsInorganic Elemental AnalysisNanotubesBismuth Film ElectrodesHeavy Metal DetectionHeavy Metal Ion DetectionMethod Detection LimitMulti-walled Carbon NanotubesNanomaterial-modified ElectrodesSensing ApplicationsSensitivity
Abstract Screen‐printed electrodes (SPEs) are cheap and disposable. But their application for heavy metal detection is limited due to the low sensitivity and poor selectivity. Here we report the ultrasensitive and simultaneous determination of Zn 2+ , Cd 2+ and Pb 2+ on a multiwalled carbon nanotubes and Nafion composite modified SPE with in situ plated bismuth film (MWCNTs/NA/Bi/SPE). The linear curves range from 0.5–100 µg L −1 for Zn 2+ and 0.5–80 µg L −1 for Cd 2+ . Uniquely, the linear curve for Pb 2+ ranges from 0.05–100 µg L −1 with a detection limit of 0.01 µg L −1 . The practical application was verified in real samples with satisfactory results.
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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
A Decade with Bismuth‐Based Electrodes in Electroanalysis
Ivan Švancara, Chad Prior, Samo B. Hočevar et al. · Electroanalysis · 2010 · 341 citations · Full text
Natural Sciences, Materials Engineering, Materials Science +13