Simultaneous Determination of Copper, Lead, and Cadmium Ions at a Mo 6 S 9-x I x Nanowires Modified Glassy Carbon Electrode Using Differential Pulse Anodic Stripping Voltammetry

Lin, Hong; Li, Meixian; Mihailović, D.

doi:10.1016/j.electacta.2014.12.087

Cited by 86 publications

(18 citation statements)

References 36 publications

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“…The data reveals that CNT/nanoAu-SiO 2 is highly sensitive, enabling detection of lower Cu 2+ and Pb 2+ concentrations compared to all other electrodes tested here. Compared with the recent literature, our electrode was better than Mo6SxI9-x NWs/GCE [27, 28] not only for copper but also for lead, with LOD and LOQ values for the CNT/nanoAu-SiO 2 electrode lower than those for the Mo6SxI9-x NWs/GCE electrode.…”

Section: Resultscontrasting

confidence: 49%

Electrochemical Study of Carbon Nanotubes/Nanohybrids for Determination of Metal Species Cu²⁺ and Pb²⁺ in Water Samples

Silva

Oliveira

Delfino

et al. 2016

Journal of Analytical Methods in Chemistry

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The use of nanomaterials, such as nanoparticles and nanotubes, for electrochemical detection of metal species has been investigated as a way of modifying electrodes by electrochemical stripping analysis. The present study develops a new methodology based on a comparative study of nanoparticles and nanotubes with differential pulse anodic stripping voltammetry (DPASV) and examines the simultaneous determination of copper and lead. The glassy carbon electrode modified by gold nanoparticles demonstrated increased sensitivity and decreased detection limits, among other improvements in analytical performance data. Under optimized conditions (deposition potential −0.8 V versus Ag/AgCl; deposition time, 300 s; resting time, 10 s; pulse amplitude, 50 mV; and voltage step height, 4 mV), the detection limits were 0.2279 and 0.3321 ppb, respectively, for determination of Pb2+ and Cu2+. The effects of cations and anions on the simultaneous determination of metal ions do not exhibit significant interference, thereby demonstrating the selectivity of the electrode for simultaneous determination of Pb2+ and Cu2+. The same method was also used to determine Cu2+ in water samples.

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Section: Resultscontrasting

confidence: 49%

Electrochemical Study of Carbon Nanotubes/Nanohybrids for Determination of Metal Species Cu²⁺ and Pb²⁺ in Water Samples

Silva

Oliveira

Delfino

et al. 2016

Journal of Analytical Methods in Chemistry

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“…[45], Table 2; ref. [47], Table 1), the LOD obtained in our work was lower. Some polymer brush or polymer composites on substrate for determination of Pb 2+ ion were also compared with our work and shown in Table 1.…”

Section: Detection Of Pb 2+ Ioncontrasting

confidence: 54%

“…10c. At shorter preconcentration time, the peak currents for Pb 2+ ion increased with the deposition time, owing to the increased amount of metal ions on the PAM/Au electrode [45,47]. It reached a large data at 240 s, suggesting a saturation of metal.…”

Section: Detection Of Pb 2+ Ionmentioning

confidence: 93%

Preparation of polyacrylamide via surface-initiated electrochemical-mediated atom transfer radical polymerization (SI-eATRP) for Pb2+ sensing

Sun

Deng

et al. 2015

J Solid State Electrochem

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Acrylamide polymer brushes (PAM) were prepared on the surface of Au electrode for Pb 2+ ion sensing via surface-initiated electrochemical-mediated atom transfer radical polymerization (SI-eATRP). The electrode modified with PAM (PAM/Au) was carefully examined by cyclic voltammetry (CV), electrochemical impedance spectroscopy (EIS), polarization modulation infrared reflection-absorption spectroscopy (PM-IRRAS), and scanning electron microscope (SEM). Further, the PAM/Au electrode was successfully used for the determination of Pb 2+ ion by differential pulse anodic stripping voltammetry (DPASV). Under the optimal conditions, the PAM/Au electrode showed a linear correlation for Pb 2+ concentrations in the range of 3.0×10 −3 to 2.0×10 3 μg/L. The limit of detection (S/N = 3.3) was estimated to be 3.7× 10 −4 μg/L. Finally, polymer brush electrodes were applied to analyze Pb 2+ ion in an effluent. The results of the experiment indicated that PAM/Au electrode has good accuracy and potential application in practical sample analysis. In a word, the work of this paper established a useful way for the synthesis and application of polymer brush.

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“…They have received considerable intention of the scientist due to their venomous effects in human beings, and other living organisms even at trace levels [1][2][3][4][5][6]. Due to noxious effects of these heavy metals like kidney failure, liver damage, cancer, nausea central nervous system, high blood pressure, pulmonary fibrosis, skin dermatitis, renal edema, diarrhea and vomiting, spectroscopic methods for determination of trace and ultratrace level of these metals in water, food and biological samples have become of challenging research area for analytical chemists [1,[7][8][9][10][11]. Due to low level of these heavy metals in environmental samples than the detection limits of the spectroscopic methods, the direct determination of these trace metals is generally not possible.…”

Section: Introductionmentioning

confidence: 99%

Preparation and characterization of magnetic allylamine modified graphene oxide-poly(vinyl acetate-co-divinylbenzene) nanocomposite for vortex assisted magnetic solid phase extraction of some metal ions

Khan

Yılmaz

Sevinc

et al. 2016

Talanta

132

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Simultaneous Determination of Copper, Lead, and Cadmium Ions at a Mo 6 S 9-x I x Nanowires Modified Glassy Carbon Electrode Using Differential Pulse Anodic Stripping Voltammetry

Cited by 86 publications

References 36 publications

Electrochemical Study of Carbon Nanotubes/Nanohybrids for Determination of Metal Species Cu²⁺ and Pb²⁺ in Water Samples

Electrochemical Study of Carbon Nanotubes/Nanohybrids for Determination of Metal Species Cu²⁺ and Pb²⁺ in Water Samples

Preparation of polyacrylamide via surface-initiated electrochemical-mediated atom transfer radical polymerization (SI-eATRP) for Pb2+ sensing

Preparation and characterization of magnetic allylamine modified graphene oxide-poly(vinyl acetate-co-divinylbenzene) nanocomposite for vortex assisted magnetic solid phase extraction of some metal ions

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Simultaneous Determination of Copper, Lead, and Cadmium Ions at a Mo 6 S 9-x I x Nanowires Modified Glassy Carbon Electrode Using Differential Pulse Anodic Stripping Voltammetry

Cited by 86 publications

References 36 publications

Electrochemical Study of Carbon Nanotubes/Nanohybrids for Determination of Metal Species Cu2+ and Pb2+ in Water Samples

Electrochemical Study of Carbon Nanotubes/Nanohybrids for Determination of Metal Species Cu2+ and Pb2+ in Water Samples

Preparation of polyacrylamide via surface-initiated electrochemical-mediated atom transfer radical polymerization (SI-eATRP) for Pb2+ sensing

Preparation and characterization of magnetic allylamine modified graphene oxide-poly(vinyl acetate-co-divinylbenzene) nanocomposite for vortex assisted magnetic solid phase extraction of some metal ions

Contact Info

Product

Resources

About

Electrochemical Study of Carbon Nanotubes/Nanohybrids for Determination of Metal Species Cu²⁺ and Pb²⁺ in Water Samples

Electrochemical Study of Carbon Nanotubes/Nanohybrids for Determination of Metal Species Cu²⁺ and Pb²⁺ in Water Samples