A Novel Coumarin Based Fluorescent Probe for Cu²⁺ Detection as well as Applications
摘要
A novel coumarin-based fluorescent probe LY was designed and synthesized in this work. LY could selectively recognize Cu2+ via fluorescence quenching at 522 nm in a DMSO/H2O solution. The recognition process experienced minimal interference from other common cations. The binding ratio of LY to Cu2+ was found to be 1:1, while the detection limit was calculated to be 4.6 × 10− 8 M with the binding constant of 2.42 × 106 M− 1. Additionally, LY was effectively utilized for detecting Cu2+ in real water samples and with test papers, demonstrating its applicability.