Abstract
A fluorescent probe (probe C) based on coumarin-thiourea conjugate was developed for selective detection of Hg2+. Addition of Hg2+ to probe C induced obvious enhancement of the fluorescence intensity. Probe C exhibited good selectivity toward Hg2+ and good anti-interference performance over other common competitive metal ions including Na+, K+, Ag+, Cu2+, Zn2+, Co2+, Ni2+, Mn2+, Mg2+, Fe2+, Fe3+, Ca2+ and Al3+. The detection limit of probe C for Hg2+ was calculated to be 0.44 nM. It was capable of detecting Hg2+ ion in a wide pH range of 1.0–10.0.
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Acknowledgements
The Funding for the Open Research Program of State Key Laboratory of Molecular Engineering of Polymers, Fudan University (K2022-38 to Yanxi Song) is acknowledged.
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This work was supported by the Funding for the Open Research Program of State Key Laboratory of Molecular Engineering of Polymers, Fudan University (K2022-38 to Yanxi Song).
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Yanxi Song developed the idea of the study and was responsible for experiments guiding and paper reviewing. Mengjie Yan and Xiaofeng Xia completed measurement of the sensing performance of the probe and draft writing. Zhixiu Pan and Jinjiang Shi synthesized the probe and were responsible for data collection and analysis. Hongqi Li was responsible for experiments guiding and paper reviewing. Peihong Cong was responsible for paper reviewing and guiding.
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Song, Y., Yan, M., Xia, X. et al. A fluorescent turn-on probe based on coumarin-thiourea conjugate for Hg2+ detection in a wide pH range. Chem. Pap. 77, 4297–4305 (2023). https://doi.org/10.1007/s11696-023-02778-4
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DOI: https://doi.org/10.1007/s11696-023-02778-4