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J Hazard Mater. 2012 Aug 15;227-228:480-3. doi: 10.1016/j.jhazmat.2012.05.047. Epub 2012 May 18.

Methacrylate copolymers with pendant piperazinedione-sensing motifs as fluorescent chemosensory materials for the detection of Cr(VI) in aqueous media.

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  • 1Departamento de Química, Facultad de Ciencias, Universidad de Burgos, Burgos, Spain.


A fluorogenic sensory film, or dense membrane, capable of detecting Cr(VI), Fe(III), and Hg(II) in water was prepared. The film was prepared by a bulk radical polymerization of different comonomers, one of which contained a piperazinedione motif as sensory fluorophore. The film exhibited gel-like behavior and was highly tractable, even after being swollen in water. The sensing conditions were chosen to overcome interference from iron and mercury cations, giving rise to a material with a detection limit of 1 ppb for Cr(VI).

Copyright © 2012 Elsevier B.V. All rights reserved.

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