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摘要
A novel Hg2+ ion fluorescent sensor 1 has been synthesized based on amide group, sensor 1 showed a highly sensitive and selective response towards Hg2+ over other metal ions by reversibly forming a [1-Hg2+] complex in 100% aqueous solution. The fluorescence detection limits was 0.41 nM. The Job's plots, the MS analysis and H-1 NMR titration experiments implied that there was only the formation of a 1/Hg2+ complex with 1:1 stoichiometry. Moreover, S2- ion can remove Hg2+ from the complex and restore the spectral signal of 1. This research may enrich the field of multi-functional chemosensors in natural products.
- 出版日期2018-5-1
- 单位齐齐哈尔大学
