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Please use this identifier to cite or link to this item: http://repository.iitr.ac.in/handle/123456789/3584
Title: 1,8-Naphthyridine-based fluorescent receptors for picric acid detection in aqueous media
Authors: Chahal M.K.
Sankar M.
Published in: Analytical Methods
Abstract: We utilized the potential applications of 1,8-naphthyridine-based sensors for the detection of various nitroaromatics such as picric acid (PA), 3-nitrophenol (NP), 2,4-dinitrotoluene (DNT), 1,3-dinitrobenzene (DNB), 4-nitrotoluene (NT), nitrobenzene (NB) and nitromethane (NM). Among the various nitroaromatic analogues, nap-OH (1) and nap-Cl (2) sense picric acid (PA) much more efficiently and with very low detection limits (1.12 and 0.96 ppm, respectively), owing to favourable electron and/or energy transfer mechanisms along with potential electrostatic interactions. Interestingly, both sensors 1 and 2 detect PA in aqueous media (H2O/CH3OH, 8:2) with the same quenching efficiency as in neat CH3OH, resulting in cheap, sensitive and environmentally friendly detection methodology. Therefore, use of these molecules for picric acid detection in aqueous and methanolic solutions, having low detection limits along with exceptional quenching constants (kSV) meets the present need. In addition, sensors 1 and 2 exhibit instant visualization of trace amounts of PA in both the solid-state and when using test strips. © 2015 The Royal Society of Chemistry.
Citation: Analytical Methods (2015), 7(24): 10272-10279
URI: https://doi.org/10.1039/c5ay01464f
http://repository.iitr.ac.in/handle/123456789/3584
Issue Date: 2015
Publisher: Royal Society of Chemistry
ISSN: 17599660
Author Scopus IDs: 55696261900
6701530390
Author Affiliations: Chahal, M.K., Department of Chemistry, Indian Institute of Technology Roorkee, Roorkee, Uttrakhand, 2476667, India
Sankar, M., Department of Chemistry, Indian Institute of Technology Roorkee, Roorkee, Uttrakhand, 2476667, India
Corresponding Author: Sankar, M.; Department of Chemistry, Indian Institute of Technology RoorkeeIndia; email: sankafcy@iitr.ac.in
Appears in Collections:Journal Publications [CY]

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