Journal
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
Volume 152, Issue -, Pages 70-76Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.saa.2015.07.062
Keywords
Rhodamine B; Fluorescent sensor; Al3+; Aqueous solution; Cellular imaging
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Funding
- base and cutting-edge technology research project of Henan Province [142300410369]
- Natural Science Research project of Henan Province education department [2014A610013]
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In this paper, a new fluorescent probe has been synthesized and applied as off-on sensor for the detection of Al3+ with a high sensitivity and excellent selectivity in aqueous media. The sensor was easily prepared by one step reaction between rhodamine B hydrazide and pyridoxal hydrochloride named REP. The structure of the sensor has been characterized by nuclear magnetic resonance and electron spray ionization-mass spectrometry. The fluorescence intensity and absorbance for the sensor showed a good linearity with the concentration of Al3+ in the range of 0-12.5 mu M and 8-44 mu M, respectively, with detection limits of 0.23 mu M and 1.90 mu M. The sensor RBP was preliminarily applied to the determination of Al3+ in water samples from the lake of Henan University and tap water with satisfying results. Moreover, it can be used as a bioimaging reagent for imaging of Al3+ in living cells. (C) 2015 Elsevier B.V. All rights reserved.
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