Detection of lead(II) using an glassy carbon electrode modified with Nafion, carbon nanotubes and benzo-18-crown-6

Sukeri, Anandhakumar; Mathiyarasu, J.

doi:10.1007/s00604-013-1022-7

Cited by 40 publications

(33 citation statements)

References 27 publications

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“…However, the profile of CNT bundle became unapparent, indicating that Nbim and CNTs were miscible throughout the electrode surface. This result was similar to the former reports [34].…”

Section: Characterization Of Nbim/cnt Composite Filmsupporting

confidence: 94%

Electrochemical sensor based on Nbim/CNT composite for selective determination of luteolin in the flavonoids

Liao

Wang

et al. 2015

Journal of Electroanalytical Chemistry

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“…However, the profile of CNT bundle became unapparent, indicating that Nbim and CNTs were miscible throughout the electrode surface. This result was similar to the former reports [34].…”

Section: Characterization Of Nbim/cnt Composite Filmsupporting

confidence: 94%

Electrochemical sensor based on Nbim/CNT composite for selective determination of luteolin in the flavonoids

Liao

Wang

et al. 2015

Journal of Electroanalytical Chemistry

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“…Nevertheless, regarding the sensitivities considered as the value obtained from the slope of the calibration curves, it can be mentioned that: i) using CB-18-crown-6-GEC, Pb(II) was the metal ion showing better sensitivity; and ii) using CB-15-crown-5-GEC, Cu(II) was the most sensitive metal. The LOD of the assay for the three metal ions in both modified electrodes varied from 1.5 to 4.7 μg L −1 depending on the metal ion ( than the values reported in earlier studies [6,7,13]. In the case of Cd(II) no previous LOD and LOQ data is available in the literature.…”

Section: Repetitivity and Reproducibilitymentioning

confidence: 59%

“…Particularly, crown ethers are well-known to form complexes with alkaline ions, alkaline earth metals, lanthanides and transition metal ions. Surprisingly, studies devoted to complexation with transition metal ions are scarce and only few works using crown ether-modified electrodes are published for the determination of lead [5][6][7], mercury [8,9], silver [10], thallium [11], palladium [12] and copper [13].…”

Section: Introductionmentioning

confidence: 99%

Crown ether-modified electrodes for the simultaneous stripping voltammetric determination of Cd(II), Pb(II) and Cu(II)

Serrano

González‐Calabuig

Valle

2015

Talanta

104

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This work describes the immobilization of 4-carboxybenzo-18-crown-6 (CB-18-crown-6) and 4-carboxybenzo-15-crown-5 (CB-15-crown-5) assisted by lysine on aryl diazonium salt monolayers anchored to the surface of graphite-epoxy composite electrodes (GEC), and their use for the simultaneous determination of Cd(II), Pb(II) and Cu(II) by differential pulse anodic stripping voltammetry (DPASV). These modified electrodes display a good repetitivity and reproducibility with detection and quantification limits at levels of µg L -1 (ppb), confirming their suitability for the determination of Cd(II), Pb(II) and Cu(II) ions in environmental samples. The overlapped nature of the multimetal stripping measurements was resolved by employing the two-sensor array CB-15-crown-5-GEC and CB-18-crown-6-GEC, since the metal complex selectivity exhibited by the considered ligands could add * e-mail: manel.delvalle@uab.es; Phone: (+34) 93 581 10 17; Fax: (+34) 93 581 24 77 *Manuscript This is the author's version of a work that was accepted for publication in Talanta (Ed. Elsevier). Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in: Serrano, N., González, A. and del Valle, M. "Crown ether-modified electrodes for the simultaneous stripping voltammetric determination of Cd(II), Pb(II) and Cu (II)" in Talanta, vol. 138 (June 2015), p. 130-137. DOI 10.1016/j.talanta.2015 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64

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“…Moreover, Nafion is a cation exchanger with a high cation exchange capacity. Therefore, the Nafion film-modified GCE shows a higher accumulation efficiency for Pb 2+ and finally enhances the stripping current [1,40,41]. Measurements were taken using an optimized system based on that developed by Dai et al [42], with 0.1 M HCl as the supporting electrolyte.…”

Section: Resultsmentioning

confidence: 99%

Electrochemical determination of lead(II) ions in hot spring water based on a multi-walled carbon nanotube-modified glassy carbon electrode

Li¹,

Economics²

2018

International Journal of Electrochemical Science

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The present study reports the fabrication of a carbon nanotube/Nafion composite film (MWNT/Nafion)-modified glassy carbon electrode (GCE) along with its excellent performance in the analysis of Pb 2+ (favorable catalytic activity, large surface area, high cation exchange capacity, and strong adsorption ability). The stripping peak current of Pb 2+ was greatly increased at the MWNT/Nafion-coated GCE compared with the bare and Nafion-coated GCEs. The optimization of different parameters was also carried out, including optimization of the accumulation time, accumulation potential, supporting electrolyte, and MWNT/Nafion suspension volume. Therefore, our developed electrode can be used in the analysis of Pb 2+ in real hot spring water samples.

show abstract

Detection of lead(II) using an glassy carbon electrode modified with Nafion, carbon nanotubes and benzo-18-crown-6

Cited by 40 publications

References 27 publications

Electrochemical sensor based on Nbim/CNT composite for selective determination of luteolin in the flavonoids

Electrochemical sensor based on Nbim/CNT composite for selective determination of luteolin in the flavonoids

Crown ether-modified electrodes for the simultaneous stripping voltammetric determination of Cd(II), Pb(II) and Cu(II)

Electrochemical determination of lead(II) ions in hot spring water based on a multi-walled carbon nanotube-modified glassy carbon electrode

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