electrochemical determination of vitamin b6 in fruit juices using a new nanostructure voltammetric sensor

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.