A “turn-on” Fluorescent Sensor For the Selective Detection of Cobalt and Nickel Ions in Aqueous Media

Author

Fasil A. Abebe
Carla S. Eribal
Guda Ramakrishna
Ekkehard Sinn, Missouri University of Science and TechnologyFollow

Abstract

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.

Recommended Citation

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

Department(s)

Chemistry

International Standard Serial Number (ISSN)

0040-4039

Document Type

Article - Journal

Document Version

Citation

File Type

text

Language(s)

English

Rights

© 2011 Elsevier, All rights reserved.

Publication Date

01 Jan 2011