Two-dimensional nanocomposite-based electrochemical sensor for rapid determination of trans-resveratrol.
Sci Total Environ
; 742: 140351, 2020 Nov 10.
Article
en En
| MEDLINE
| ID: mdl-32629245
ABSTRACT
A two-dimensional nanocomposite-based disposable electrochemical sensor was fabricated for the rapid analysis of trans-resveratrol (TRA) in red wine. The sensor was prepared by modifying graphene-molybdenum disulfide (Gr-MoS2) nanocomposite on the surface of screen-printed electrode (SPE). Results show that the Gr-MoS2 nanocomposite with sheet-on-sheet structure can accelerate the oxidation reaction kinetics of TRA due to its large effective electrochemical surface area and high electron transfer rate. As a result, the Gr-MoS2 nanocomposite appears the synergistic effects, making the highly sensitive detection of TRA come true. The prepared sensor showed a linear response in TRA concentration from 1.0 to 200 µmol L-1 (with a limit of detection of 0.45 µmol L-1). After validating the accuracy with high performance liquid chromatography (HPLC), this nanocomposite-based electrochemical sensor can be applied for the detection of TRA in real red wine samples.
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1
Colección:
01-internacional
Base de datos:
MEDLINE
Asunto principal:
Nanocompuestos
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Grafito
Idioma:
En
Revista:
Sci Total Environ
Año:
2020
Tipo del documento:
Article