文献类型：期刊文献

英文题名：Voltammetric Detection of Catechol and Dopamine Based on a Supramolecular Composite Prepared from Multifarene[3,3] and Reduced Graphene Oxide

作者：Luo, Huan Zhao, Yong-Yi Jin, Xian-Yi Yang, Jian-Mei Cong, Hang Ge, Qing-Mei Sun, Lin Liu, Mao Tao, Zhu

第一作者：Luo, Huan

机构：[1] Key Laboratory of Macrocyclic and Supramolecular Chemistry of Guizhou Province, Guizhou University, Guiyang, 550025, China; [2] School of Materials and Metallurgical Engineering, Guizhou Institute of Technology, Guiyang, 550001, China; [3] Guizhou Shengyang Pipeline Technology Co., Ltd, Guiding, 551302, China

第一机构：Key Laboratory of Macrocyclic and Supramolecular Chemistry of Guizhou Province, Guizhou University, Guiyang, 550025, China

通信机构：Key Laboratory of Macrocyclic and Supramolecular Chemistry of Guizhou Province, Guizhou University, Guiyang, 550025, China;Key Laboratory of Macrocyclic and Supramolecular Chemistry of Guizhou Province, Guizhou University, Guiyang, 550025, China

年份：2020

卷号：32

期号：7

起止页码：1449-1458

外文期刊名：Electroanalysis

收录：EI(收录号：20231713961865);Scopus(收录号：2-s2.0-85082800912)

语种：英文

外文关键词：catechol; dopamine; multifarene; reduced graphene oxide; supramolecular chemistry

摘要：A selective and sensitive modified-electrode for catechol and dopamine was presented with supramolecular recognition accomplished by making use of the macrocyclic host multifarene[3,3] that was used as a composite with reduced graphene oxide. The morphologies and electrochemical nature of the composite were characterized by atomic force microscopy, transmission electron microscopy, cyclic voltammetry and differential pulse anodic voltammetry. The modified electrode, best operated at a potential around 0.16 V vs. Ag/AgCl, displayed a differential pulse voltammetric response in the linear concentration range of 10–100 nM within a detection limit of 0.51 nM (at S/N=3). It was further applied to detect dopamine (at a working potential of 0.18 V vs. Ag/AgCl) in the linear concentration range of 10–100 nM with a detection limit of 0.62 nM. The modified electrode also exhibited satisfactory results to the determination of dopamine injections. The constructed modified electrode for dopamine detection was investigated in the presence of the interfering substances including glucose, urea and ascorbic acid, indicating a good selectivity. ? 2020 Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim