A high-performance voltammetric methodology for the ultra-sensitive detection of riboflavin in food matrices based on graphene oxide-covered hollow MnO2 spheres

文献类型： 外文期刊

第一作者： Zhang, Lijun

作者： Zhang, Lijun;Liu, Xian;Luo, Luyu;Chang, Xueping;Gan, Tian;Zhang, Lijun;Liu, Xian;Luo, Luyu;Chang, Xueping;Gan, Tian;Hu, Cong;Gan, Tian;Gan, Tian;Zhang, Lijun;Fu, Jianwei;Gan, Tian

作者机构：

关键词： Riboflavin; Voltammetry; Modified electrode; Graphene oxide; Hollow MnO2 spheres; Food analysis

期刊名称：FOOD CHEMISTRY （ 影响因子：6.306； 五年影响因子：6.219 ）

ISSN： 0308-8146

年卷期： 2021 年 352 卷

页码：

收录情况： SCI

摘要： A high-performance voltammetric methodology was developed to achieve ultra-sensitive detection of riboflavin, employing an electrode modified by graphene oxide-covered hollow MnO2 spheres nanocomposite with high catalytic activity, large surface area, and hierarchical layered structure. Under the optimal conditions, the current responses of the oxidation peak located at -0.39 V showed a good linear relationship versus the concentration of riboflavin in the range of 1.0 nM-4.0 mu M in acetate buffer (pH 5.4). The limit of detection was determined as 0.26 nM. Moreover, the proposed electrode exhibited high reproducibility (relative standard deviation of 1.7%, n = 10) and excellent stability (97.6% sensitivity within two months), which has been successfully applied to the quantification of riboflavin in complicated food matrices, with results in good accordance with those obtained by chromatography as a reference method, indicating it is an effective sensing platform for ultra-sensitive determination of riboflavin in practical applications.

分类号：

  • 相关文献
作者其他论文 更多>>

微信小程序