The application of carbon nanomaterials as electrode surface modifiers for the voltammetric sensing of nitroxinil - A comparative study
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11310%2F19%3A10409181" target="_blank" >RIV/00216208:11310/19:10409181 - isvavai.cz</a>
Result on the web
<a href="https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=o443yZHXhp" target="_blank" >https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=o443yZHXhp</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.jelechem.2019.113294" target="_blank" >10.1016/j.jelechem.2019.113294</a>
Alternative languages
Result language
angličtina
Original language name
The application of carbon nanomaterials as electrode surface modifiers for the voltammetric sensing of nitroxinil - A comparative study
Original language description
This research paper reports on preparation of glassy carbon electrodes (GCE) modified with different carbon nanomaterials, such as single-walled carbon nanotubes (SWCNTs), multi-walled carbon nanotubes (MWCNTs), graphene functionalized using carboxylic groups (fG), and carbon nanohorns (CNHs). Topographical and electrochemical characterization of fabricated electrochemical sensors was performed by atomic force microscopy, electrochemical impedance spectroscopy, and cyclic voltammetry. Besides, their application for the determination of veterinary drug nitroxinil (Ntx) was verified. The voltammetric experiments were carried out using square wave voltammetry (SWV) with optimized parameters in Britton-Robinson buffer, pH 2.0, which was chosen as the most suitable medium for Ntx determination. The calibration curves for Nix were constructed employing SWCNTs-GCE, MWCNTs-GCE, fG-GCE, and CNHs-GCE, and limits of quantification (LOQ) and detection (LOD) were assessed. The results showed that all tested modified electrodes can be applied for electroanalysis of Nix, however, the highest sensitivity and satisfactory LOD of 0.16 mu mol L-1 and LOQ of 0.53 mu mol L-1 were obtained for MWCNTs-GCE. For that reason, MWCNTs-GCE was subsequently applied for quantitative analysis of Ntx in milk samples with results proving high repeatability and recoveries.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10406 - Analytical chemistry
Result continuities
Project
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Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2019
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Journal of Electroanalytical Chemistry
ISSN
1572-6657
e-ISSN
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Volume of the periodical
848
Issue of the periodical within the volume
September
Country of publishing house
CH - SWITZERLAND
Number of pages
8
Pages from-to
113294
UT code for WoS article
000504505400020
EID of the result in the Scopus database
2-s2.0-85068740416