Title of article :
Electrochemical determination of Vitamin B6 in fruit juices using a new nanostructure voltammetric sensor
Author/Authors :
Mehri-Talarposhti ، Farzaneh Department of Food Hygiene - Islamic Azad University, Ayatollah Amoli Branch , Ghorbani-Hasan Saraei ، Azade Department of Food Science and Technology - Islamic Azad University, Ayatollah Amoli Branch , Golestan ، Leila Department of Food Hygiene - Islamic Azad University, Ayatollah Amoli Branch , Shahidi ، Ahmad Department of Food Science and Technology - Islamic Azad University, Ayatollah Amoli Branch
Abstract :
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.
Keywords :
Vitamin B6 , Modified electrode , MgO , CNTs nanocomposite , Sensor amplification
Journal title :
Asian Journal of Nanoscience and Materials
Journal title :
Asian Journal of Nanoscience and Materials
