Adsorptive stripping voltammetric determination of carbofuran in herbs on chromatographic sorbent modified electrode
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11310%2F21%3A10435842" target="_blank" >RIV/00216208:11310/21:10435842 - isvavai.cz</a>
Result on the web
<a href="https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=ROzHe-JssT" target="_blank" >https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=ROzHe-JssT</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.jelechem.2021.115692" target="_blank" >10.1016/j.jelechem.2021.115692</a>
Alternative languages
Result language
angličtina
Original language name
Adsorptive stripping voltammetric determination of carbofuran in herbs on chromatographic sorbent modified electrode
Original language description
The determination of carbofuran (CBF) in herbs (wild chamomile and Saint-John's-wort) was developed using a carbon-containing electrode (CCE) modified with carbon ink (CI) containing chromatographic sorbent (CS) based on chromaton (Ch), polyethylene glycol (PEG), and iron acetylacetonate (Fe(AA)(3)). The surface morphology of the Ch/PEG/Fe(AA)(3)/CI/CCE was investigated by scanning electron microscopy (SEM) in backscatteredelectron (BSE) mode and by electrochemical impedance spectroscopy (EIS). Electrochemically inactive CBF was converted to an electrochemically active phenolic analogue CBFP by an alkaline hydrolysis. The electrochemical behavior of CBFP at Ch/PEG/Fe(AA)(3)/CI/CCE was studied by cyclic voltammetry (CV) in a phosphate buffer solution (PBS) pH 6.86 in the potential range from -0.4 to 1.2 V. Under the optimal experimental conditions, linear concentration dependences in the concentration range from 0.25 to 10 mu mol center dot L-1 were obtained by linear scan voltammetry in the first derivative mode (LSVFD) with limit of detection (LOD) 0.08 mu mol center dot L-1. The proposed Ch/PEG/Fe(AA)(3)/CI/CCE demonstrated good sensitivity and selectivity for the determination of CBF after its conversion to CBFP. The use of sorbents as modifying agents of electrodes for the determination of carbamate pesticides opens up the possibilities for "green" electroanalytical chemistry.
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
<a href="/en/project/GC20-01417J" target="_blank" >GC20-01417J: New approaches preventing passivation in monitoring of environmental organic pollutants</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Others
Publication year
2021
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
900
Issue of the periodical within the volume
November
Country of publishing house
CH - SWITZERLAND
Number of pages
6
Pages from-to
115692
UT code for WoS article
000709863700005
EID of the result in the Scopus database
2-s2.0-85116060565