RT info:eu-repo/semantics/article
T1 Solid polymer substrates and smart fibres for the selective visual detection of TNT both in vapour and in aqueous media
A1 Pablos, Jesús Luis
A1 Trigo López, Miriam
A1 Serna Arenas, Felipe
A1 García García, Félix Clemente
A1 García Pérez, José Miguel
K1 Química orgánica
K1 Chemistry, Organic
AB This work describes the design of efficient, inexpensive and easily prepared selective sensory polymers with chemically anchored amine groups as 2,4,6-trinitrotoluene (TNT)-sensing motifs as materials for the selective visual detection of TNT in aqueous media and as vapours. The materials are prepared as handleable sensory films or dense membranes from which sensory discs are cut, as well as smart fibres by coating conventional and commercial cotton fabrics. Both types of material exhibited a highly visible colour development from colourless to red upon contact with TNT both in the gas phase and in solution, and the colour change was used to build titration curves using the colour definition parameters of a digital image acquired with a smartphone, i.e., the RGB system. The materials were selective, remaining silent with other nitroaromatic compounds, such as 4-nitrotoluene and 2,4-dinitrotoluene, and the detection limit in solution was close to the micromolar range.
PB Royal Society of Chemistry
SN 2046-2069
YR 2014
FD 2014
LK http://hdl.handle.net/10259/8544
UL http://hdl.handle.net/10259/8544
LA eng
NO We gratefully acknowledge the financial support provided by the Spanish Ministerio de Economía y Competitividad-Feder (MAT2011-22544) and by the Consejería de Educación-Junta de Castilla y León (BU232U13).
DS Repositorio Institucional de la Universidad de Burgos
RD 12-may-2024