Abstract
In this paper, we report a turn-on fluorescence sensing of Al3+ ion using a new fluorenone derivative. The imino derivative of 2-amino-9-fluorenone and mercapto-2-butanone is synthesized and characterized using IR, NMR, and mass spectral techniques. The fluorescence of the compound shows a large enhancement at the addition of Al3+ ions, and other metal ions show insignificant changes of the fluorescence. The stoichiometry and the binding constant of the complex are reported. The detection limit of the Al3+ determination by the fluorenone derivative is 5 × 10–8 M. A visible enhancement of color occurs on illumination of the fluorescent compound – Al3+ ion complex.
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Thangaraj, S.E., Antony, E.J., Selvan, G.T. et al. A New Fluorenone-based Turn-on Fluorescent Al3+ Ion Sensor. J Anal Chem 74, 87–92 (2019). https://doi.org/10.1134/S1061934819010118
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DOI: https://doi.org/10.1134/S1061934819010118