A direct differential pulse anodic stripping voltammetric method for the determination of thallium in natural waters

Bonelli, Joseph E.; Taylor, Howard E.; Skogerboe, R. K.

doi:10.1016/s0003-2670(01)93600-1

Cited by 55 publications

(14 citation statements)

References 26 publications

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“…For instance, Bonelli et al. reported very low LOD of 0.0011 μg L −1 when MF was employed for determination of thallium in natural waters . Carvahlo at al.…”

Section: Resultsmentioning

confidence: 99%

Mercury‐modified Lignosulfonate‐stabilized Gold Nanoparticles as an Alternative Material for Anodic Stripping Voltammetry of Thallium

2017

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Lignosulfonate‐stabilized gold nanoparticles (AuNPs‐LS) were synthesized and subsequently used as a complexing agent for mercury ions. The obtained AuNPs‐LS/Hg2+ complex was characterized by means of various physicochemical techniques such as UV‐vis spectroscopy, transmission electron microscopy and cyclic voltammetry. Furthermore, the resulting complex was evaluated as an electrode modifier for the development of amperometric sensors. Upon sufficient negative potential, the bound mercury ions are reduced to form an amalgam with AuNPs‐LS. Thus, the performance of glassy carbon electrode (GCE) modified by AuNPs‐LS/Hg film was investigated as an electrochemical sensor in the determination of Tl+ ions in a 0.05 M EDTA at pH 4.5. The presence of the mercury containing film improves the analyte accumulation due to its ability to form a fused amalgam with thallium. The presented data indicate that the GCE/AuNPs‐LS/Hg modified electrode shows better performance toward Tl+ determination in comparison to bare GCE. The stripping anodic peak current of thallium was linear over its concentration range from 1.7⋅10−7 to 5.0⋅10−6 M. The detection limit (3σ) was estimated to be 1.4⋅10−7 M. The proposed method was successfully applied for the determination of thallium ions in real samples of soil derived from the area of the copper smelter near Głogów (Poland).

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“…For instance, Bonelli et al. reported very low LOD of 0.0011 μg L −1 when MF was employed for determination of thallium in natural waters . Carvahlo at al.…”

Section: Resultsmentioning

confidence: 99%

Mercury‐modified Lignosulfonate‐stabilized Gold Nanoparticles as an Alternative Material for Anodic Stripping Voltammetry of Thallium

2017

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“…The EDTA and DTPA complexes with Cd 2þ and Pb 2þ are very stable. The chemical treatment with these complexing agents allows one to determine simultaneously only Cd and Tl [1]. However, this method is not suitable for Pb determination.…”

Section: Resultsmentioning

confidence: 99%

“…The analytical procedure was validated using the certified reference material (Cabbage BCR 679). In leaves samples, the Tl concentration was determined using DPASV on HMDE [1]. The results are included into Table 1.…”

Section: Resultsmentioning

confidence: 99%

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Determination of Lead and Cadmium at Silver Electrode by Subtractive Anodic Stripping Voltammetry in Plant Materials Containing Tl

Krasnodębska‐Ostręga

Piekarska

2005

Electroanalysis

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Lead and cadmium have been determined by the subtractive anodic stripping voltammetry using the square-wave mode at a silver electrode without removal of oxygen. The samples containing large amount of thallium were collected from a highly contaminated region. The presence of thallium strongly affects the peak shape of Cd. The plant material digestion was performed with HNO 3 /HClO 4 mixture using pressurised microwave decomposition. The proposed method used for the lead determination was validated by the inter-method comparison (ICP-MS). The cadmium determination was validated using certified reference material. The results obtained, supported by statistical tests, demonstrated the usefulness of the method for the lead determination in samples containing large amounts of Cd and Tl. It is important to note that Cd can only be quantified when the thallium concentration is much lower than that of cadmium.

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“…The chemical process often involves the addition of a suitable complexing agent to mask or shift the stripping peaks potential [3][4][5][6]. In some situations the chemical approach is coupled with medium-exchange procedure [7,8].…”

Section: Introductionmentioning

confidence: 99%

Resolution of Voltammetric Peaks Using Chemometric Multivariate Calibration Methods

2001

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A direct differential pulse anodic stripping voltammetric method for the determination of thallium in natural waters

Cited by 55 publications

References 26 publications

Mercury‐modified Lignosulfonate‐stabilized Gold Nanoparticles as an Alternative Material for Anodic Stripping Voltammetry of Thallium

Mercury‐modified Lignosulfonate‐stabilized Gold Nanoparticles as an Alternative Material for Anodic Stripping Voltammetry of Thallium

Determination of Lead and Cadmium at Silver Electrode by Subtractive Anodic Stripping Voltammetry in Plant Materials Containing Tl

Resolution of Voltammetric Peaks Using Chemometric Multivariate Calibration Methods

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