One-step rapid colorimetric detection of K⁺ using silver nanoparticles modified by crown ether

Yufeng Sun,Shengwen Wang,Fangfang Wang,Hao Zhang,Weiya Huang,Aiguo Wu,Yujie Zhang

The Analyst（2023）

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摘要

One-step rapid colorimetric detection method for K+ based on size matching was established with excellent selectivity and interference immunity. The LOD for K+ is 20 μM with the naked eye and 2.16 μM with UV-vis absorption spectroscopy.

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silver nanoparticles,rapid colorimetric detection,crown,one-step

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One-step rapid colorimetric detection of K+ using silver nanoparticles modified by crown ether

One-step rapid colorimetric detection of K⁺ using silver nanoparticles modified by crown ether