Journal
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
Volume 157, Issue -, Pages 6-10Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.saa.2015.12.004
Keywords
Al(III); Colorimetric; Fluorescent chemosensor
Categories
Funding
- National Natural Science Foundation of China [21171040]
- International Sea Area Resources Survey and Development of the 12th Five-year Plan of China [DY125-15-E-01]
- Educational Commission of Anhui Province of China [2014KJ016, 2014KJ024, 2015KJ002]
- Natural Science Foundation of Fuyang Normal College [2015FSKJ02ZD, 2014FSKJ06, FS201402001B]
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A colorimetric and fluorescent chemosensor (L) for Al(III) was synthesized and fully characterized. L could be both used as a colorimetric and fluorescent chemosensor for the detection of Al3+ ions with low detection limit (8.87 x 10(-7) M) in CH3CN-H2O (1:1, v/v) solution. The binding ratio of L-Al3+ was determined from the Job plot (absorption and fluorescence spectra) and MALDI-TOF MS data to be 1:1. The binding constant (K-a) of Al3+ binding to L was calculated to be 4.8 x 10(5) M-1 from a Benesi-Hildebrand plot. Moreover, the binding site of L with Al3+ was determined by H-1 NMR titration experiment. (C) 2015 Elsevier B.V. All rights reserved.
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