A highly selective colorimetric and fluorescent dual‐modal probe for the rapid determination of fluoride anions |
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| Authors: | Changsuo Li Chengcheng Tang Liting Xing Bin Sun Shiyu Cheng Qiang Liao Baocun Zhu |
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| Institution: | 1. Shandong Provincial Geo‐mineral Engineering Exploration Institute, Jinan, China;2. School of Resources and Environment, University of Jinan, Shandong Provincial Engineering Technology Research Center for Ecological Carbon Sink and Capture Utilization, Jinan, China |
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| Abstract: | In this work, 4‐(p ‐hydroxybenzylidenehydrazino)‐N ‐butyl‐1,8‐naphthalimide ( 1 ) has been designed and synthesized as a colorimetric and fluorescent dual‐modal probe for F?. Compound 1 immediately detected inorganic fluoride salts using UV /v is absorption and fluorescence spectroscopy methods, and served as a ‘naked‐eye’ indicator for F? with high selectivity and sensitivity. Both the absorption and fluorescence spectra show excellent linearity with the concentration of F?. Real‐life applications demonstrated that our proposed analytical system provided a satisfactory method for the determination of F?. In addition, the reaction mechanism of deprotonation was confirmed by 1H NMR. |
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| Keywords: | fluorescent probe inorganic fluoride naked‐eye detection ratiometric determination |
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