基于 Cu@纳米多孔碳修饰传感器的电化学检测水果样品中有害抗氧化剂二苯胺
Electrocatalytic detection of noxious antioxidant diphenylamine in fruit samples with support of Cu@nanoporous carbon modified sensor.
机构信息
Advanced Membrane Materials Research Center, Graduate Institute of Applied Science and Technology, National Taiwan University of Science and Technology, No:43, Section 4, Keelung Road, Taipei, 106, Taiwan, Republic of China.
Electroanalysis and Bioelectrochemistry Lab, Department of Chemical Engineering and Biotechnology, National Taipei University of Technology, No. 1, Section 3, Chung-Hsiao East Road, Taipei, 106, Taiwan, Republic of China.
出版信息
Chemosphere. 2022 Apr;292:133400. doi: 10.1016/j.chemosphere.2021.133400. Epub 2021 Dec 30.
Herein, the facile synthesis of copper(II) and benzene-1,3,5-tricarboxylate (Cu-BTC) and copper nanoporous carbon (Cu@NPC) for the electrochemical detection of diphenylamine (DPA) was systematically investigated. The Cu-BTC and Cu@NPC materials structural, morphological, and thermal stability were evaluated and confirmed using FE-SEM, HR-TEM, XRD, FT-IR, and TGA. The electrocatalytic behavior of sensor materials was examined by cyclic voltammetry (CV) and differential pulse voltammetry (DPV). It is presumed that the structural stability and synergic effect exhibited in Cu@NPC are favorable for enhanced sensitivity and selectivity towards the detection of DPA. The Cu@NPC exhibited a wide linear range (0.09-396.82 μM) and the lowest limit of detection (5 nM). Furthermore, the real sample analysis of the sensor for the detection of DPA in apples and pears confirms its potential capability in practical application.
本文系统地研究了铜（II）和苯-1,3,5-三甲酸（Cu-BTC）和铜纳米多孔碳（Cu@NPC）的简便合成，用于电化学检测二苯胺（DPA）。使用 FE-SEM、HR-TEM、XRD、FT-IR 和 TGA 评估和确认了 Cu-BTC 和 Cu@NPC 材料的结构、形态和热稳定性。通过循环伏安法（CV）和差分脉冲伏安法（DPV）检查了传感器材料的电催化行为。据推测，Cu@NPC 中表现出的结构稳定性和协同效应有利于提高对 DPA 检测的灵敏度和选择性。Cu@NPC 表现出宽的线性范围（0.09-396.82 μM）和最低检测限（5 nM）。此外，传感器对苹果和梨中二苯胺的实际样品分析证实了其在实际应用中的潜在能力。
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