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Inorganic arsenic speciation by differential pulse anodic stripping voltammetry using thoria nanoparticles-carbon paste electrodes.
Talanta. 2016 May 15; 152:211-8.T

Abstract

Two novel thoria (ThO2) nanoparticles-carbon paste electrodes were used to evaluate an anodic stripping voltammetric method for the direct determination of arsenite and total inorganic arsenic (arsenite plus arsenate) in water samples. The effect of Ag((I)), Cu((II)), Hg((II)), Sb((III)) and Se((IV)) ions on the electrochemical response of arsenic was assayed. The developed electroanalytical method offers a rapid procedure with improved analytical characteristics including good repeatability (3.4%) at low As((III)) concentrations, high selectivity, lower detection limit (0.1 μg L(-1)) and high sensitivity (0.54 μA μg(-1) L). The analytical capability of the optimized method was demonstrated by the determination of arsenic in certified reference materials (trace elements in natural water, trace elements in water and coal fly ash).

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Authors+Show Affiliations

Pereira FJ
Department of Applied Chemistry and Physics, Area of Analytical Chemistry, Faculty of Biological and Environmental Sciences, University of León, Campus de Vegazana, s/n, 24071 León, Spain.
Vázquez MD
Department of Analytical Chemistry, Faculty of Sciences, University of Valladolid, C/Paseo de Belén, no. 7, 47011 Valladolid, Spain.
Debán L
Department of Analytical Chemistry, Faculty of Sciences, University of Valladolid, C/Paseo de Belén, no. 7, 47011 Valladolid, Spain.
Aller AJ
Department of Applied Chemistry and Physics, Area of Analytical Chemistry, Faculty of Biological and Environmental Sciences, University of León, Campus de Vegazana, s/n, 24071 León, Spain. Electronic address: aj.aller@unileon.es.

MeSH

ArsenicArsenitesCarbonElectrochemical TechniquesElectrodesFresh WaterLimit of DetectionNanocompositesNanoparticlesThorium DioxideWater Pollutants, Chemical

Pub Type(s)

Journal Article
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

26992513

Citation

Pereira, F J., et al. "Inorganic Arsenic Speciation By Differential Pulse Anodic Stripping Voltammetry Using Thoria Nanoparticles-carbon Paste Electrodes." Talanta, vol. 152, 2016, pp. 211-8.
Pereira FJ, Vázquez MD, Debán L, et al. Inorganic arsenic speciation by differential pulse anodic stripping voltammetry using thoria nanoparticles-carbon paste electrodes. Talanta. 2016;152:211-8.
Pereira, F. J., Vázquez, M. D., Debán, L., & Aller, A. J. (2016). Inorganic arsenic speciation by differential pulse anodic stripping voltammetry using thoria nanoparticles-carbon paste electrodes. Talanta, 152, 211-8. https://doi.org/10.1016/j.talanta.2016.02.011
Pereira FJ, et al. Inorganic Arsenic Speciation By Differential Pulse Anodic Stripping Voltammetry Using Thoria Nanoparticles-carbon Paste Electrodes. Talanta. 2016 May 15;152:211-8. PubMed PMID: 26992513.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Inorganic arsenic speciation by differential pulse anodic stripping voltammetry using thoria nanoparticles-carbon paste electrodes. AU - Pereira,F J, AU - Vázquez,M D, AU - Debán,L, AU - Aller,A J, Y1 - 2016/02/03/ PY - 2015/12/16/received PY - 2016/01/29/revised PY - 2016/02/02/accepted PY - 2016/3/20/entrez PY - 2016/3/20/pubmed PY - 2016/12/15/medline KW - Anodic striping voltammetry KW - Arsenic speciation KW - Cysteine KW - Differential pulse voltammetry KW - Thoria nanoparticles-modified electrode SP - 211 EP - 8 JF - Talanta JO - Talanta VL - 152 N2 - Two novel thoria (ThO2) nanoparticles-carbon paste electrodes were used to evaluate an anodic stripping voltammetric method for the direct determination of arsenite and total inorganic arsenic (arsenite plus arsenate) in water samples. The effect of Ag((I)), Cu((II)), Hg((II)), Sb((III)) and Se((IV)) ions on the electrochemical response of arsenic was assayed. The developed electroanalytical method offers a rapid procedure with improved analytical characteristics including good repeatability (3.4%) at low As((III)) concentrations, high selectivity, lower detection limit (0.1 μg L(-1)) and high sensitivity (0.54 μA μg(-1) L). The analytical capability of the optimized method was demonstrated by the determination of arsenic in certified reference materials (trace elements in natural water, trace elements in water and coal fly ash). SN - 1873-3573 UR - https://www.unboundmedicine.com/medline/citation/26992513/Inorganic_arsenic_speciation_by_differential_pulse_anodic_stripping_voltammetry_using_thoria_nanoparticles_carbon_paste_electrodes_ L2 - https://linkinghub.elsevier.com/retrieve/pii/S0039-9140(16)30082-0 DB - PRIME DP - Unbound Medicine ER -