RT info:eu-repo/semantics/article
T1 Polymer films containing chemically anchored diazonium salts with long-term stability as colorimetric sensors
A1 Bustamante, Saúl E. .
A1 Vallejos Calzada, Saúl
A1 Pascual Portal, Blanca Sol
A1 Muñoz Santamaría, María Asunción
A1 Mendía Jalón, Aránzazu
A1 Rivas, Bernabé L. .
A1 García García, Félix Clemente
A1 García Pérez, José Miguel
K1 Polymeric sensors
K1 Film shaped sensors
K1 Colorimetric sensors
K1 Phenol sensors
K1 Chemistry
K1 Química
AB We have prepared polymeric films as easy-to-handle sensory materials for the colorimetric detection and quantification of phenol derivatives (phenols) in water. Phenols in water resources result from their presence in pesticides and fungicides, among other goods, and are harmful ecotoxins. Colorless polymeric films with pendant diazonium groups attached to the acrylic polymer structure were designed and prepared for use as sensory matrices to detect phenol-derived species in water. Upon dipping the sensory films into aqueous media, the material swells, and if phenols are present, they react with the diazonium groups of the polymer to render a highly colored azo group, giving rise to the recognition phenomenon. The color development can be visually followed for a qualitative determination of phenols. Additionally, quantitative analysis can be performed by two different techniques: a) by using a UV–vis spectrophotometer (limit of detection of 0.12 ppm for 2-phenylphenol) and/or b) by using a smartphone with subsequent RGB analysis (limit of detection of 30 ppb for 2-phenylphenol)
PB Elsevier
SN 0304-3894
YR 2019
FD 2019-03
LK http://hdl.handle.net/10259/5024
UL http://hdl.handle.net/10259/5024
LA eng
NO Fondo Europeo de Desarrollo Regional (FEDER) and the Spanish Agencia Estatal de Investigación (AEI) (MAT2017-84501-R)
DS Repositorio Institucional de la Universidad de Burgos
RD 04-may-2024