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Highly Selective Chromogenic and Redox or Fluorescent Sensors of Hg2+ in Aqueous Environment Based on 1,4-Disubstituted Azines

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posted on 16.11.2005, 00:00 by Antonio Caballero, Rosario Martínez, Vega Lloveras, Imma Ratera, José Vidal-Gancedo, Klaus Wurst, Alberto Tárraga, Pedro Molina, Jaume Veciana
Two new chemosensors that exhibit high affinity and high selectivity for Hg2+ in aqueous environment which operate through two different channels, optic/redox and optic/fluorescent, are reported. The optical change in sensing can be used even for a “naked-eye” detection of Hg2+ ions, whereas the fluorescent response can be modulated by varying the solvent polarity.

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