MOFs-based Microfluidic Chips for Real-time Online Determination of Multiple Heavy Metal Ions

被引：0
|
作者：
Chen X. [1 ,2 ]
Wang X. [1 ]
Liu N. [1 ]
Wang Q. [1 ,2 ]
Ni J. [1 ,2 ]
Yang W. [1 ,2 ]
Lin Z. [3 ]
机构：
[1] College of Chemistry，Chemical Engineering and Environment, Minnan Normal University, Zhangzhou
[2] Fujian Provincial Key Laboratory of Modern Analytical Science and Separation Technology, Fujian Province University, Key Laboratory of Pollution Monitoring and Control, Minnan Normal University, Zhangzhou
[3] Key Laboratory for Analytical Science of Food Safety and Biology, Ministry of Education, Fujian Provincial Key Laboratory of Analysis and Detection for Food Safety, Fuzhou University, Fuzhou
来源：
Gaodeng Xuexiao Huaxue Xuebao/Chemical Journal of Chinese Universities | 2024年 / 45卷 / 02期
基金：
中国国家自然科学基金;
关键词：
Electrochemical sensor; Heavy metal detection; Metal-organic framework（MOF）; Microfluidic;
D O I：
10.7503/cjcu20230473
中图分类号：
学科分类号：
摘要：
This study combines the accumulation effects of rich microporous ZIF-8 metal-organic framework（MOF）and the electrochemical technology for the metal ions，and the controllable ability of microfluidic devices for the flowing of solution，to construct a new type of sensor to achieve high-throughput，real-time and rapid detection of multiple metal ion contaminations in the environment. The developed ZIF-8-Nafion/ITO-based microfluidic electro⁃ chemical sensors have a good linear relationship for Cd2+，Pb2+ and Hg2+ ions in the concentration range of 0.1—100 μmol/L with the detection limit of 0.055，0.0025 and 0.0016 μmol/L，respectively（S/N=3）. The microfluidic chips require less sample volume which reduces energy consumption；at the same time，the microfluidic devices made up of polydimethylsiloxane are also expected to realize the function of flexible electrodes，which is important for the integrated and automatic detection of biological and environmental samples using portable and flexible electrochemical devices. © 2024 Higher Education Press Limited Company. All rights reserved.
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