NDLI: Solid polymer substrates and smart fibres for the selective visual detection of TNT both in vapour and in aqueous media

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RSC Advances Vol - 4 Issue - 39

RSC Advances Vol - 4 Issue - 29

RSC Advances Vol - 4 Issue - 19

Solid polymer substrates and smart fibres for the selective visual detection of TNT both in vapour and in aqueous media

Content Provider	Royal Society of Chemistry (RSC)
Author	Trigo-López, Miriam García, José M. Pablos, Jesús L. García, Félix C. Serna, Felipe
Copyright Year	2014
Abstract	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.
Starting Page	25562
Ending Page	25568
Page Count	7
File Format	HTM / HTML PDF
ISSN	20462069
Volume Number	4
Issue Number	49
Journal	RSC Advances
DOI	10.1039/c4ra02716g
Language	English
Publisher	Royal Society of Chemistry
Access Restriction	Open
Subject Keyword	4-Nitrotoluene Trinitrotoluene Titration TNT Cotton Smartphone RGB color model 2,4-Dinitrotoluene
Content Type	Text
Resource Type	Article
Subject	Chemistry Chemical Engineering

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