Highly sensitive electrochemical detection of myricetin in food samples based on the enhancement effect of Al-MOFs

文献类型： 外文期刊

第一作者： Jiang, Cuiwen

作者： Jiang, Cuiwen;Xie, Liping;Wang, Yanli;Liang, Jing;Li, Huiling;Luo, Lihong;Li, Tao;Liang, Zhongdan;Tang, Li;Ning, Dejiao;Ya, Yu;Yan, Feiyan

作者机构：

期刊名称：ANALYTICAL METHODS （ 影响因子：3.532； 五年影响因子：3.244 ）

ISSN： 1759-9660

年卷期： 2022 年 14 卷 36 期

页码：

收录情况： SCI

摘要： Microporous aluminum-based metal-organic frameworks (CAU-1) are used to develop a simple and sensitive electrochemical sensor for myricetin (MYR) based on a modified carbon paste electrode (CPE) for the first time. The morphologies and electrochemical properties of the as-synthesized CAU-1 are studied utilizing various analytical methods including scanning electron microscopy, transmission electron microscopy, X-ray diffraction, Fourier transform infrared spectroscopy, N-2 adsorption-desorption, and electrochemical impedance spectroscopy. In terms of electrochemical oxidation of MYR, CAU-1/CPE with its large number of active micropores and rapid electron transfer demonstrates superior performance compared to the bare CPE. Under optimized conditions, the calibration curve for MYR exhibits a linear range of 1.0-10 mu g L-1 and 10-1000 mu g L-1 with a detection limit of 0.50 mu g L-1. The developed CAU-1/CPE exhibits superior analytical characteristics, compared to previously reported electrochemical sensors for MYR detection. Furthermore, CAU-1/CPE is employed to determine MYR in Myrica bark samples, and the results are consistent with those obtained by high-performance liquid chromatography, demonstrating the excellent potential of CAU-1/CPE for the rapid analysis of MYR in complicated real samples.

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