A “turn-on” Fluorescent Sensor For the Selective Detection of Cobalt and Nickel Ions in Aqueous Media
Two newly designed turn-on fluorescein-based chemosensors are highly sensitive and selective for Co 2+ and Ni 2+ in both absorption and emission modes, normally difficult to achieve with these paramagnetic ions. Binding to both ions is reversible, as indicated by the bleaching of the color when the metal is extracted with EDTA. Given the difficulty of designing enhanced fluorescent sensors for paramagnetic Co 2+ and Ni 2+ ions, the fluorescein compounds may inspire the further development of more sophisticated sensing constructs for the detection of these ions. © 2011 Elsevier Ltd. All rights reserved.
F. A. Abebe et al., "A “turn-on” Fluorescent Sensor For the Selective Detection of Cobalt and Nickel Ions in Aqueous Media," Tetrahedron Letters, Elsevier, Jan 2011.
The definitive version is available at https://doi.org/10.1016/j.tetlet.2011.08.072
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© 2011 Elsevier, All rights reserved.