基于 1-萘胺催化氧化的铜（II）离子灵敏选择性检测比色化学传感器。
A colorimetric chemosensor for sensitive and selective detection of copper(II) ions based on catalytic oxidation of 1-naphthylamine.
机构信息
CAS Key Laboratory of Standardization and Measurement for Nanotechnology, National Center for Nanoscience and Technology, Beijing 100190, China.
University of the Chinese Academy of Sciences, Beijing 100049, China.
出版信息
Analyst. 2023 Jul 10;148(14):3306-3311. doi: 10.1039/d3an00536d.
Rapid on-site detection of copper(II) ions (Cu) with high sensitivity and selectivity is of great significance in the safety monitoring of drinking water and food. Colorimetric detection is a robust fast determination method with the main drawback of low sensitivity. Herein, we developed a colorimetric chemosensor based on a colored polymer product. a Cu-Fenton mechanism, 1-naphthylamine (α-NA) was oxidized by HO and brownish-red poly(1-naphthylamine) (PNA) was produced. The obtained Cu sensor showed a linear response from 0.05 μM to 7 μM, with a detection limit of 62 nM. Our findings expanded chromogenic reaction types for colorimetric detection.
快速、高灵敏度和选择性地现场检测铜（II）离子（Cu）对于饮用水和食品的安全监测具有重要意义。比色检测是一种强大的快速测定方法，主要缺点是灵敏度低。在此，我们基于有色聚合物产物开发了一种比色化学传感器。Cu-Fenton 机制下，HO 氧化 1-萘胺（α-NA），生成红棕色聚 1-萘胺（PNA）。所得到的 Cu 传感器在 0.05 μM 到 7 μM 之间表现出线性响应，检测限为 62 nM。我们的发现扩展了比色检测的显色反应类型。
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