Highly Sensitive Detection of Thiabendazole Residues in Food Samples Based on Multiwall Carbon Nanotubes Decorated Two-Dimensional Layered Molybdenum Disulfide

Thiabendazole (TBZ), a widely used agricultural antifungal, has been evidenced to pose serious threat to human health. However, highly sensitive detection of it in food samples is difficult owing to the complexity of food matrix. Herein, an electrochemical sensor, based on multiwall carbon nanotubes...

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Bibliographic Details
Published in:Food analytical methods 2020-03, Vol.13 (3), p.811-822
Main Authors: Cheng, Fuliang, Liao, Xiaoning, Huang, Zhiwen, Xu, Liting, Zhou, Ying, Zhang, Xue
Format: Article
Language:English
Subjects:
Analytical Chemistry
Chemical sensors
Chemistry
Chemistry and Materials Science
Chemistry/Food Science
Coefficient of variation
Drinking water
Electrochemistry
Food
Food matrix
Food Science
Fungicides
Health risks
High-performance liquid chromatography
Linearity
Liquid chromatography
Microbiology
Molybdenum
Molybdenum disulfide
Multi wall carbon nanotubes
Nanotechnology
Nanotubes
Oxidation
Residues
Selectivity
Spinach
Square waves
Thiabendazole
Water analysis
Water sampling
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Summary:Thiabendazole (TBZ), a widely used agricultural antifungal, has been evidenced to pose serious threat to human health. However, highly sensitive detection of it in food samples is difficult owing to the complexity of food matrix. Herein, an electrochemical sensor, based on multiwall carbon nanotubes (MWCNTs) decorated two-dimensional layered molybdenum disulfide (MoS 2 ), was firstly developed for rapid detection of TBZ using square wave voltammetry method. It is demonstrated that the modification of MoS 2 with MWCNTs enhances the catalytic performance to TBZ oxidation. Under optimized conditions, the electrochemical sensor shows admirable linearity range, high selectivity and low detection limit. In pear, water spinach and tap water sample analyses, satisfactory recoveries from 92.83 to 101.92% with coefficients of variation less than 5% were obtained, showing high consistence with the HPLC results. This work puts forward a rapid and reliable method for the highly sensitive screening of the residues of TBZ in food resource.
ISSN:1936-9751
1936-976X
DOI:10.1007/s12161-019-01698-y