2026-04-19T16:51:07Zhttps://riubu.ubu.es/oai/request

oai:riubu.ubu.es:10259/43252022-04-29T12:02:48Zcom_10259_4313com_10259_5086com_10259_2604com_10259_4365col_10259_4314col_10259_4366

2017-02-07T12:25:21Z urn:hdl:10259/4325 Forced Solid-State Interactions for the Selective “Turn-On” Fluorescence Sensing of Aluminum Ions in Water Using a Sensory Polymer Substrate Vallejos Calzada, Saúl Muñoz Santamaría, María Asunción Ibeas Cortes, Saturnino Serna Arenas, Felipe García García, Félix Clemente García Pérez, José Miguel sensory polymer aluminum sensing fluorescence chemosensor fluorescence turn-on 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. 2017-02-07T12:25:21Z 2017-02-07T12:25:21Z 2015-01 info:eu-repo/semantics/article http://hdl.handle.net/10259/4325 eng ACS Applied Materials and Interfaces. 2015, V. 7, n. 1, p. 1-1030 http://dx.doi.org/10.1021/am507458k info:eu-repo/semantics/openAccess American Chemical Society