Han Yu, Zhang Li, Li Shaobin, Li Fengbo, Xin Jianjiao, Wang Xue, Liang Minjie
College of Materials Science and Engineering, Heilongjiang Provincial Key Laboratory of Polymeric Composite Materials, Qiqihar University, Qiqihar 161006, China.
College of Materials Science and Engineering, Heilongjiang Provincial Key Laboratory of Polymeric Composite Materials, Qiqihar University, Qiqihar 161006, China.
Food Chem. 2025 Aug 15;483:144234. doi: 10.1016/j.foodchem.2025.144234. Epub 2025 Apr 7.
Hydroquinone (HQ) and catechol (CC) are toxic isomers with similar structures that often coexist, leading to interference during detection. In this study, we employed a controllable selenization strategy to construct VCT MXene-based multiphase electrode materials (VSe@VO@VCT MXene) for the simultaneous detection of HQ and CC. Electrochemical tests revealed VSe@VO@VCT MXene modified electrode exhibited low electrochemical impedance, a large active surface area, and excellent electrocatalytic performance. The sensor demonstrated linear detection ranges for HQ and CC from 0.5 to 600 μM, with limits of detection 0.144 μM and 0.131 μM, respectively. Additionally, it exhibited excellent repeatability, reproducibility, selectivity, and stability. The practical applicability of the sensor was confirmed through testing in drinking water and beverages, showing satisfactory recovery rates. This work expands the application of VCT MXene in the field of electrochemical sensing and offers new insights for food safety monitoring.
对苯二酚（HQ）和邻苯二酚（CC）是结构相似的有毒异构体，它们常常共存，导致检测过程中产生干扰。在本研究中，我们采用可控硒化策略构建基于VCT MXene的多相电极材料（VSe@VO@VCT MXene），用于同时检测HQ和CC。电化学测试表明，VSe@VO@VCT MXene修饰电极表现出低电化学阻抗、大活性表面积和优异的电催化性能。该传感器对HQ和CC的线性检测范围为0.5至600 μM，检测限分别为0.144 μM和0.131 μM。此外，它还表现出优异的重复性、重现性、选择性和稳定性。通过在饮用水和饮料中的测试证实了该传感器的实际适用性，回收率令人满意。这项工作拓展了VCT MXene在电化学传感领域的应用，并为食品安全监测提供了新的见解。
