Electrochemical determination of vitamin B6 in water and juice samples using an electrochemical sensor amplified with NiO/CNTs and Ionic liquid

被引：34

作者：

Sadeghi, Hossein ^{[1
]}

Shahidi, Seyed-Ahmad ^{[1
]}

Raeisi, Shahram Naghizadeh ^{[1
]}

Ghorbani-HasanSaraei, Azade ^{[1
]}

Karimi, Fatemeh ^{[2
]}

机构：

[1] Islamic Azad Univ, Dept Food Sci & Technol, Ayatollah Amoli Branch, Amol 4631139631, Mazandaran, Iran

[2] Quchan Univ Technol, Dept Chem Engn, Lab Nanotechnol, Quchan, Iran

来源：

INTERNATIONAL JOURNAL OF ELECTROCHEMICAL SCIENCE | 2020年 / 15卷 / 10期

关键词：

Vitamin B-6; Food analytical sensor; NiO/CNTs; Modified electrode; CARBON-PASTE ELECTRODE; SENSITIVE VOLTAMMETRIC SENSOR; REDUCED GRAPHENE OXIDE; FOOD SAMPLES; ELECTROCATALYTIC DETERMINATION; SELECTIVE DETERMINATION; P-AMINOPHENOL; ASCORBIC-ACID; QUANTUM DOTS; BISPHENOL-A;

D O I：

10.20964/2020.10.51

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

Measurement of food additives helps a lot to check the food quality. Also, Vitamin B6 is one of the most important vitamins in food samples. In this study, we fabricated an electroanalytical food sensor based on the amplification of a carbon paste electrode (CPE) as well as NiO-CNTs nanocomposite and 1-methyl-3-octylimidazolium hexafluorophosphate (MOHFPE). The NiO-CNTs/MOHFPE/CPE showed the catalytic activity for the determination of vitamin B6 and also improved the oxidation current of vitamin B6 up to about similar to 2.5 times. Also, in comparison to CPE, the oxidation potential of vitamin B6 was shifted to a negative value of about 100 mV, which confirmed the successful modification of CPE with NiO-CNTs and MOHFPE. The results related to differential pulse voltammetric (DPV) investigations showed a linear between the current and vitamin B6 concentrations in the range of 4.0 nM - 500 mu M with a detection limit of 0.9 nM. The NiO-CNTs/MOHFPE/CPE, as an analytical tool, was successfully used to determine vitamin B6 in drinking and juices samples using the standard addition method.

引用

页码：10488 / 10498

页数：11

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