基于巯基化共价有机框架的电化学平台用于灵敏检测 Hg(II)离子。
Thiol-grafted covalent organic framework-based electrochemical platforms for sensitive detection of Hg(II) ions.
机构信息
Hunan Provincial Key Laboratory of Micro & Nano Materials Interface Science, College of Chemistry and Chemical Engineering, Central South University, Changsha, Hunan 410083, China.
Hunan Provincial Center for Disease Control and Prevention, Changsha, Hunan 410083, China.
出版信息
Chem Commun (Camb). 2023 Jul 11;59(56):8731-8734. doi: 10.1039/d3cc01954c.
Triazine-based covalent organic frameworks functionalized by thiol and thioether (COF/COF) were designed and served as a platform that could bind with mercury ions specifically based on Hard-Soft-Acid-Base theory. As such, when employing COFs as a modifier in a carbon paste electrode (CPE), the COF-modified CPE revealed an extraordinary performance (detection limit of 0.01 ppb; linear range of 0.1 to 1.0 ppb) and repeatability for electrochemical detection of trace mercury, even in real samples collected from tap or lake water. This innovative approach leverages the inherent properties of covalent organic frameworks (COFs) to enable highly sensitive and selective detection of target analytes.
基于三嗪的共价有机框架经巯基和硫醚官能化（COF/COF），根据软硬酸碱理论，被设计为能特异性结合汞离子的平台。因此，将 COF 用作碳糊电极（CPE）中的修饰剂时，COF 修饰的 CPE 对痕量汞的电化学检测表现出非凡的性能（检测限为 0.01 ppb；线性范围为 0.1 至 1.0 ppb）和重复性，即使在自来水中或湖水采集的实际样本中也是如此。这种创新方法利用了共价有机框架（COFs）的固有特性，实现了对目标分析物的高灵敏度和选择性检测。
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