Please use this identifier to cite or link to this item:
https://open.uns.ac.rs/handle/123456789/8468
Title: | Antimony nanoparticle-multiwalled carbon nanotubes composite immobilized at carbon paste electrode for determination of trace heavy metals | Authors: | Ashrafi A. Cerovac S. Mudrić S. Guzvanj (Guzsvány), Valerija (Valéria) Husáková L. Urbanová I. Vytřas K. |
Issue Date: | 1-Jan-2014 | Journal: | Sensors and Actuators, B: Chemical | Abstract: | A nanocomposite based on multiwalled carbon nanotubes (MWCNT) modified with antimony nanoparticles (SbNPs) was synthesized chemically and has been applied to construct an electrode using carbon paste as substrate (SbNP-MWCNT). The developed electrode was applied for the determination of trace heavy metals Pb2+ and Cd2+ by square-wave adsorptive stripping voltammetry. The results were compared with those obtained by related electrode configurations such as Sb-film carbon paste electrode (SbF) and Sb-microsphere-multiwalled carbon nanotube composite carbon paste electrode (Sbmicrosphere-MWCNT) in model solutions. The analytical signals for Pb2+ and Cd2+ decreased in the order I Sb-nanoparticle > ISb-film > I Sb-microsphere, indicating that the size of the Sb particles on the coating layer influenced the oxidation current signals of Pb and Cd. The detection limits of the analytes were 0.77 μg L-1 and 0.65 μg L-1 for Cd2+ and Pb2+, respectively. The designed electrode was tested for the determination of target ions in wheat flour certified reference material, and the results compared well with those obtained by inductively coupled plasma time-of-flight mass spectrometry, showing satisfactory performance of the composite electrode. © 2013 Elsevier B.V. | URI: | https://open.uns.ac.rs/handle/123456789/8468 | ISSN: | 09254005 | DOI: | 10.1016/j.snb.2013.08.087 |
Appears in Collections: | PMF Publikacije/Publications |
Show full item record
SCOPUSTM
Citations
69
checked on May 10, 2024
Page view(s)
31
Last Week
12
12
Last month
2
2
checked on May 10, 2024
Google ScholarTM
Check
Altmetric
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.