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Electrochemical determination of Vitamin B6 in fruit juices using a new nanostructure voltammetric sensor

Journal: Asian Journal of Nanoscience and Materials (Vol.3, No. 4)

Publication Date:

Authors : ; ; ; ;

Page : 313-320

Keywords : Vitamin B6; Modified electrode; MgO/CNTs nanocomposite; Sensor amplification;

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In this study, MgO/CNTs nanocomposite was synthesized using a simple approach according to the hydrogen bonding between the oxygen atom in MgO and hydrogen atom in SWCNTs-COOH. The nanocomposite was characterized using the FESEM and EDS methods. The MgO/CNTs nanocomposite was used for amplification of the paste electrode (PE) at the presence of 1-methyl-3-buthyl imizazolonium tetrafluoroborate (MBITF) as the binder. The MgO/CNTs/MBITF/PE was used as an electroanalytical tool for electro-oxidation determination of vitamin B6 in food samples. In comparison to PE, the oxidation signal of vitamin B6 was improved up to 3.2 times at the surface of MgO/CNTs/MBITF/PE. At pH=6 as optimum condition, the MgO/CNTs/MBITF/PE revealed linear dynamic range of 0.1-400 µM for determination of vitamin B6 with the detection limit of 30.0 nM. In the final step, the MgO/CNTs/MBITF/PE showed acceptable recovery data for the determination of vitamin B6 in fruit juices samples, confirming the ability of the sensors in real sample analysis.

Last modified: 2020-10-30 18:55:06