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A First Tentative for Simultaneous Detection of Fungicides in Model and Real Wines by Microwave Sensor Coupled to Molecularly Imprinted Sol-Gel Polymers

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Laboratoire Interdisciplinaire Carnot de Bourgogne, CNRS UMR 6303, Departement Interface, GERM, University Bourgogne Franche-Comté, 21078 Dijon, France
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Service d’Appui à la Recherche, AgroSup Dijon, F-21000 Dijon, France
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AgroSup Dijon, University Bourgogne Franche-Comté, PAM UMR A 02.102, Procédés Alimentaires et Microbiologiques, F-21000 Dijon, France
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Institut Universitaire de la Vigne et du Vin Jules Guyot, AgroSup Dijon, University Bourgogne Franche-Comté, PAM UMR A 02.102, Procédés Alimentaires et Microbiologiques, F-21000 Dijon, France
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Author to whom correspondence should be addressed.
Sensors 2020, 20(21), 6224; https://doi.org/10.3390/s20216224
Received: 28 September 2020 / Revised: 23 October 2020 / Accepted: 29 October 2020 / Published: 31 October 2020
(This article belongs to the Section Chemical Sensors)
A molecularly imprinted silica (MIS) coupled to a microwave sensor was used to detect three fungicides (iprodione, procymidone and pyrimethanil) present in most French wines. Chemometric methods were applied to interpret the microwave spectra and to correlate microwave signals and fungicide concentrations in a model wine medium, and in white and red Burgundy wines. The developed microwave sensor coupled to an MIS and to its control, a nonimprinted silica (NIS), was successfully applied to detect the three fungicides present in trace levels (ng L−1) in a model wine. The MIS sensor discriminated the fungicide concentrations better than the NIS sensor. Partial Least Squares models were suitable for determining iprodione in white and red wines. A preliminary method validation was applied to iprodione in the white and red wines. It showed a limit of detection (LOD) lower than 30 ng L−1 and a recovery percentage between 90 and 110% when the iprodione concentration was higher than the LOD. The determined concentrations were below the authorized level by far. View Full-Text
Keywords: molecularly imprinted polymers; microwave sensor; chemometric methods; pesticides; wine; rapid detection molecularly imprinted polymers; microwave sensor; chemometric methods; pesticides; wine; rapid detection
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MDPI and ACS Style

Rossignol, J.; Dujourdy, L.; Stuerga, D.; Cayot, P.; Gougeon, R.D.; Bou-Maroun, E. A First Tentative for Simultaneous Detection of Fungicides in Model and Real Wines by Microwave Sensor Coupled to Molecularly Imprinted Sol-Gel Polymers. Sensors 2020, 20, 6224. https://doi.org/10.3390/s20216224

AMA Style

Rossignol J, Dujourdy L, Stuerga D, Cayot P, Gougeon RD, Bou-Maroun E. A First Tentative for Simultaneous Detection of Fungicides in Model and Real Wines by Microwave Sensor Coupled to Molecularly Imprinted Sol-Gel Polymers. Sensors. 2020; 20(21):6224. https://doi.org/10.3390/s20216224

Chicago/Turabian Style

Rossignol, Jérôme, Laurence Dujourdy, Didier Stuerga, Philippe Cayot, Régis D. Gougeon, and Elias Bou-Maroun. 2020. "A First Tentative for Simultaneous Detection of Fungicides in Model and Real Wines by Microwave Sensor Coupled to Molecularly Imprinted Sol-Gel Polymers" Sensors 20, no. 21: 6224. https://doi.org/10.3390/s20216224

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