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Tytuł:
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A novel voltammetric platform based on dysprosium oxide for the sensitive determination of sunset yellow in the presence of tartrazine.
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Autorzy:
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Baytak AK; Department of Chemistry, University of Harran, Sanliurfa, 63510, Turkey.
Akbaş E; Department of Chemistry, University of Harran, Sanliurfa, 63510, Turkey.
Aslanoglu M; Department of Chemistry, University of Harran, Sanliurfa, 63510, Turkey. Electronic address: .
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Źródło:
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Analytica chimica acta [Anal Chim Acta] 2019 Dec 09; Vol. 1087, pp. 93-103. Date of Electronic Publication: 2019 Aug 26.
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Typ publikacji:
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Journal Article
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Język:
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English
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Imprint Name(s):
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Publication: Amsterdam : Elsevier
Original Publication: Amsterdam.
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MeSH Terms:
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Azo Compounds/*analysis
Dysprosium/*chemistry
Electrochemical Techniques/*methods
Food Additives/*analysis
Metal Nanoparticles/*chemistry
Tartrazine/*chemistry
Beverages/analysis ; Electrochemical Techniques/instrumentation ; Electrodes ; Limit of Detection ; Nanotubes, Carbon/chemistry ; Reproducibility of Results
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Contributed Indexing:
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Keywords: Dysprosium oxide nanoparticles; Sensor; Sunset yellow; Voltammetric platform
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Substance Nomenclature:
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0 (Azo Compounds)
0 (Food Additives)
0 (Nanotubes, Carbon)
1D4N45714Q (Dysprosium)
H77VEI93A8 (6-hydroxy-5-((p- sulfophenyl)azo)-2-naphthalenesulfonic acid disodium salt)
I753WB2F1M (Tartrazine)
Y423N8C3EV (dysprosium oxide)
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Entry Date(s):
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Date Created: 20191006 Date Completed: 20200205 Latest Revision: 20200205
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Update Code:
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20240104
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DOI:
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10.1016/j.aca.2019.08.055
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PMID:
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31585571
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This study reports the preparation of a novel voltammetric platform based on the modification of a glassy carbon electrode (GCE) with carbon nanotubes (MWCNTs) and dysprosium oxide (Dy 2 O 3 ) nanoparticles. The electrode material was characterized by means of scanning electron microscopy (SEM), energy dispersive X-ray spectroscopy (EDX), X-ray diffraction method (XRD). The novel platform (Dy 2 O 3 NPs/MWCNTs/GCE) was applied for the voltammetric determination of sunset yellow (SY) in the presence of tartrazine (TAR). SY was first adsorbed at the surface of Dy 2 O 3 NPs/MWCNTs/GCE by keeping it into a solution of SY for 200 s. Afterwards, the proposed platform was washed with ultrapure water and transferred with the adsorbed species in a voltammetric cell containing only 0.1 M phosphate buffer solution (PBS). Then, the novel platform (Dy 2 O 3 NPs/MWCNTs/GCE) exhibited excellent electrocatalytic activity and presented improved voltammetric responses when compared to other electrodes. The novel platform produced an improved anodic peak at 0.705 V and a corresponding cathodic peak at 0.690 V for SY and an irreversible anodic peak at 0.957 V for TAR. When compared to the electrode modified with only MWCNTs, a remarkable increase in current response and a electrocatalytic activity of the proposed platform were observed for SY and TAR at a GCE modified with both MWCNTs and Dy 2 O 3 NPs. A linear relationship was obtained between the current response and the concentration of SY over range of 1.0 × 10 -9 M - 1.4 × 10 -7 M with an LOD of 3.5 × 10 -10 M using square wave voltammetry (SWV). The proposed procedure provided an accurate and a precise quantification to the analysis of food and pharmaceutical samples.
(Copyright © 2019 Elsevier B.V. All rights reserved.)