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Título : Forced Solid-State Interactions for the Selective “Turn-On” Fluorescence Sensing of Aluminum Ions in Water Using a Sensory Polymer Substrate
Autor : Vallejos Calzada, Saúl
Muñoz Santamaría, María Asunción
Ibeas Cortes, Saturnino
Serna Arenas, Felipe
García García, Félix Clemente
García Pérez, José Miguel
Publicado en: ACS Applied Materials and Interfaces. 2015, V. 7, n. 1, p. 1-1030
Editorial : American Chemical Society
Fecha de publicación : ene-2015
Resumen : Selective and sensitive solid sensory substrates for detecting Al(III) in pure water are reported. The material is a flexible polymer film that can be handled and exhibits gel behavior and membrane performance. The film features a chemically anchored salicylaldehyde benzoylhydrazone derivative as an aluminum ion fluorescence sensor. A novel procedure for measuring Al(III) at the ppb level using a single solution drop in 20 min was developed. In this procedure, a drop was allowed to enter the hydrophilic material for 15 min before a 5 min drying period. The process forced the Al(III) to interact with the sensory motifs within the membrane before measuring the fluorescence of the system. The limit of detection of Al(III) was 22 ppm. Furthermore, a water-soluble sensory polymer containing the same sensory motifs was developed with a limit of detection of Al(III) of 1.5 ppb, which was significantly lower than the Environmental Protection Agency recommendations for drinking water.
Palabras clave: sensory polymer
aluminum sensing
fluorescence chemosensor
fluorescence turn-on
URI : http://hdl.handle.net/10259/4325
Versión del editor: http://dx.doi.org/10.1021/am507458k
Aparece en las colecciones: Artículos TERMOCIN
Artículos POLYMERS

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