Fullerene-MWCNT nanostructured-based electrochemical sensor for the detection of Vanillin as food additive
| Autor: | Mustapha Bourouina, Saliha Bourouina-Bacha, Didier Hauchard, Lydia Taouri |
|---|---|
| Přispěvatelé: | Institut des Sciences Chimiques de Rennes (ISCR), Centre National de la Recherche Scientifique (CNRS)-Institut de Chimie du CNRS (INC)-Université de Rennes 1 (UR1), Université de Rennes (UNIV-RENNES)-Université de Rennes (UNIV-RENNES)-Ecole Nationale Supérieure de Chimie de Rennes (ENSCR)-Institut National des Sciences Appliquées - Rennes (INSA Rennes), Institut National des Sciences Appliquées (INSA)-Université de Rennes (UNIV-RENNES)-Institut National des Sciences Appliquées (INSA), Université Abderrahmane Mira [Béjaïa], The authors acknowledge the financial support of the Algerian Ministry of Education and Scientific Research and Campus France program under grant agreement PROFAS B+, Université de Rennes (UR)-Institut National des Sciences Appliquées - Rennes (INSA Rennes), Institut National des Sciences Appliquées (INSA)-Institut National des Sciences Appliquées (INSA)-Ecole Nationale Supérieure de Chimie de Rennes (ENSCR)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS) |
| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: |
Materials science
030309 nutrition & dietetics Carbon nanotube 01 natural sciences law.invention Fullerene-MWCNT 03 medical and health sciences chemistry.chemical_compound Adsorption law Electroanalytical method Electrochemical sensors [CHIM]Chemical Sciences Food samples Detection limit 0303 health sciences Vanillin 010401 analytical chemistry 0104 chemical sciences Electrochemical gas sensor Carbon paste electrode Chemical engineering chemistry Cyclic voltammetry Food Science Vanilla sugar |
| Zdroj: | Journal of Food Composition and Analysis Journal of Food Composition and Analysis, Elsevier, 2021, 100, pp.103811. ⟨10.1016/j.jfca.2021.103811⟩ Journal of Food Composition and Analysis, 2021, 100, pp.103811. ⟨10.1016/j.jfca.2021.103811⟩ |
| ISSN: | 0889-1575 1096-0481 |
| Popis: | International audience; In this paper, a simple, economical, selective and sensitive electrochemical sensor is proposed for the quantification of vanillin (VAN) in real food samples. It consists of a carbon paste electrode (CPE) nanostructured with Fullerene (FNTs) and functionalized multi-walled carbon nanotubes (f-MWCNTs). The developed electroanalytical method was performed with cyclic voltammetry after optimization of operating conditions, such as supporting electrolytes, pH values and accumulation time. After optimization, the nanostructured sensor showed wide linear responses in the range from 5 × 10−8 to 9 × 10-6 mol.L-1 for VAN trace levels and from 10-5 to 10-4 mol.L-1 for higher concentrations, with a low detection limit of 3.4 × 10−8 mol.L-1. For concentrations lower than 10-5 mol.L-1, VAN was stripped after a previous quick adsorption step (300 s). The f-MWCNTs-FNTs/CPE sensor showed a good stability, repeatability and reproducibility (less than 7 %). This nanostructured sensor was successfully applied to determine VAN concentration as additive in commercial vanilla sugar samples with a satisfactory recovery and a good accuracy (andlt; 6.5 %) in comparison with UPLC/UV control method. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|
Full Text from ScienceDirect