Square-Wave Anodic Stripping Voltammetry (SWASV) for the Determination of Ecotoxic Metals, Using a Bismuth-Film Electrode

Anastasiadou, Zefi D.; Sipaki, I.; Jannakoudakis, P. D.; Girousi, Stella

doi:10.1080/00032711003790023

Cited by 27 publications

(10 citation statements)

References 36 publications

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“…The theoretical detection limit was calculated by the equation DL= 3 σ bl /S , where σ bl is the standard deviation of the blank measurements and S is the sensitivity of the calibration plot. The detection limit of Pb 2+ was calculated as 2×10 −11 M. This value is significantly better in comparison with the previously reported detection limits for analysis of Pb 2+ at various electrodes and is comparable with the best recent ones 32–34.…”

Section: Resultssupporting

confidence: 75%

Hydroxyapatite Wrapped Multiwalled Carbon Nanotubes/Ionic Liquid Composite Electrode: A High Performance Sensor for Trace Determination of Lead Ions

2014

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A nanocomposite consisting of multiwalled carbon nanotubes wrapped with hydroxyapatite (HA/MWCNTs) was used in the construction of a new composite paste electrode using an ionic liquid as the binder. The stable surface in aqueous solutions as well as the high sorptive behaviors towards heavy metal ions and the favorable charge transfer make the electrode highly efficient especially for stripping or adsorptive analysis. The analysis of Pb2+ as a model of heavy metal ions has been performed. Good sensitivity, detection limit, selectivity and reproducibility were obtained for the suggested sensor. The linear range of the electrode response covered four orders of magnitude (1 nM–10 µM), in two linear ranges. The obtained detection limit for Pb2+ was 2×10−11 M.

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Section: Resultssupporting

confidence: 75%

Hydroxyapatite Wrapped Multiwalled Carbon Nanotubes/Ionic Liquid Composite Electrode: A High Performance Sensor for Trace Determination of Lead Ions

2014

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“…Also works for simultaneous determinations of bismuth with Cu and Pb using thymolphthalexone or nuclear fast red as a complexing agent [19][20][21] and for simultaneous determinations of cadmium mainly with Pb, Cu, Zn [22][23][24][25][26][27][28][29][30] and single procedures for simultaneous determination with Hg [23], Fe [31], Al [32], Tl [33] most of all by anodic stripping voltammetry [22,23,[25][26][27][28][29][30][31] infrequent adsorptive stripping voltammetry [30][31][32] But there is no method for simultaneous determination of bismuth and cadmium in a single scan. We have developed the procedure for simultaneous determination of Bi(III) and Cd(II) by adsorptive stripping measurements performed using cupferron as a complexing agent.…”

Section: Introductionmentioning

confidence: 99%

Simultaneous voltammetric determination of trace bismuth(III) and cadmium(II) in water samples by adsorptive stripping voltammetry in the presence of cupferron

Koper

Grabarczyk

2012

Journal of Electroanalytical Chemistry

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“…The previous UV digestion of the samples, as it was done in this work, is an effective procedure to overcome this problem [19] since it destroys the dissolved organic matter, which can complex trace metals or/and interact with the electrode materials, as surfactants. The comparative analysis of other works, where the simultaneous determination of metals, including Zn and Cu, were performed using bismuth electrodes [5,13 and references therein] evidences that in the present work low DLs and wider linear concentration ranges were achieved without being necessary additional reagents or the application of chemometric treatments [5,13].…”

Section: Simultaneous Determination Of Cu Hg Pb and Znmentioning

confidence: 78%

Voltammetric Quantification of Zn and Cu, Together with Hg and Pb, Based on a Gold Microwire Electrode, in a Wider Spectrum of Surface Waters

2013

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The simultaneous determination of Zn and Cu by anodic stripping voltammetry (ASV) is prone to errors due to the formation of Cu-Zn intermetallic compounds. The main aim of this work was to study the possibility of simultaneous determination of Zn and Cu, together with Hg and Pb, using a mercury-free solid gold microwire electrode. The multi-element detection was carried out by differential pulse anodic stripping voltammetry (DPASV), in a chloride medium (0.5 M NaCl) under moderate acid conditions (HCl 1.0 mM) in the presence of oxygen, where the gold microwire electrode was used as stationary or vibrating working electrode during the deposition step. Under these conditions, no formation of Cu-Zn intermetallic compounds were found for concentrations usually determined in surface waters. In addition, quantification of Zn and Cu, together with Hg and Pb, can be performed in a wide range of concentrations (about two orders of magnitude) using the same sample, in a very short period of time. The detection limits for Cu, Hg, Pb and Zn, using a vibrating electrode and 30 s of deposition time, were 0.2 mg L À1 for Hg, 0.3 mg L À1 for Pb and 0.4 mg L À1 for Zn and Cu, respectively. The proposed DPASV methods were successfully applied to the determination of Cu, Hg, Pb, and Zn in a certified reference fresh water, river, tap and coastal sea waters. These results proved the applicability and versatility of the proposed methods for the analysis of different water matrices and showed that a gold microwire electrode is a suitable choice to determine simultaneously Zn and Cu.

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Square-Wave Anodic Stripping Voltammetry (SWASV) for the Determination of Ecotoxic Metals, Using a Bismuth-Film Electrode

Cited by 27 publications

References 36 publications

Hydroxyapatite Wrapped Multiwalled Carbon Nanotubes/Ionic Liquid Composite Electrode: A High Performance Sensor for Trace Determination of Lead Ions

Hydroxyapatite Wrapped Multiwalled Carbon Nanotubes/Ionic Liquid Composite Electrode: A High Performance Sensor for Trace Determination of Lead Ions

Simultaneous voltammetric determination of trace bismuth(III) and cadmium(II) in water samples by adsorptive stripping voltammetry in the presence of cupferron

Voltammetric Quantification of Zn and Cu, Together with Hg and Pb, Based on a Gold Microwire Electrode, in a Wider Spectrum of Surface Waters

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