Abstract
A naked-eye fluorescent chemodosimeter based on rhodamine-pyridazine conjugate L was synthesized and characterized. L exhibited high selectivity and excellent sensitivity in both absorbance and fluorescence detection of Cu2+ in aqueous solution with a broad pH span (1–10). The detection limit of the probe was shown to be up to 0.336 ppm. A simple paper test-strip system for the rapid monitoring of Cu2+ was developed, indicating its convenient use in environmental samples. Furthermore, fluorescence imaging experiments of Cu2+ in living MGC803 cells demonstrated its value of practical applications in biological systems.
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Acknowledgments
This work was supported by the National Science Foundation of China (Nos. 20972143, 20972130) and Program for New Century Excellent Talents in University (NCET-11- 0950).
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Ding, P., Li, S., Yang, L. et al. A Highly Selective and Sensitive Probe for Cu2+ Based on Rhodamine-Pyridazine Conjugate and its Application. J Fluoresc 25, 15–24 (2015). https://doi.org/10.1007/s10895-014-1480-2
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DOI: https://doi.org/10.1007/s10895-014-1480-2