Journal
JOURNAL OF HAZARDOUS MATERIALS
Volume 227, Issue -, Pages 480-483Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.jhazmat.2012.05.047
Keywords
Polymer membranes; Polymer chemosensors; Sensory materials; Sensing hexavalent chromium; Hexavalent/trivalent chromium discrimination
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Funding
- Spanish Ministerio de Ciencia e Innovacion-FEDER [MAT2011-22544]
- Junta de Castilla y Leon [BU001A10-2]
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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). (C) 2012 Elsevier B.V. All rights reserved.
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