A uracil nitroso amine based colorimetric sensor for the detection of Cu 2+ ions from aqueous environment and its practical applications

A simple uracil nitroso amine based colorimetric chemosensor ( UNA-1 ) has been synthesized and screened for its cation recognition ability. Sensor UNA-1 exhibited a high sensitivity and selectivity towards Cu 2+ ions in aqueous medium in the presence of a wide range of other competing cations (Ag +...

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Bibliographic Details
Published in:RSC advances 2015, Vol.5 (28), p.21464-21470
Main Authors: Patil, Samadhan R., Nandre, Jitendra P., Patil, Prashant A., Sahoo, Suban K., Devi, Manisha, Pradeep, Chullikkattil P., Fabiao, Yu, Chen, Lingxin, Redshaw, Carl, Patil, Umesh D.
Format: Article
Language:English
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Summary:A simple uracil nitroso amine based colorimetric chemosensor ( UNA-1 ) has been synthesized and screened for its cation recognition ability. Sensor UNA-1 exhibited a high sensitivity and selectivity towards Cu 2+ ions in aqueous medium in the presence of a wide range of other competing cations (Ag + , Al 3+ , Ba 2+ , Ca 2+ , Cd 2+ , Co 2+ , Cr 3+ , Cs + , Fe 2+ , Fe 3+ , Li + , Mg 2+ , Mn 2+ , Na + , Ni 2+ , Pb 2+ , Zn 2+ , Hg 2+ and Sr 2+ ). With Cu 2+ , the sensor UNA-1 gave a distinct color change from colorless to dark yellow by forming a complex of 1 : 1 stoichiometry. Furthermore, sensor UNA-1 was successfully utilized in the preparation of test strips and supported silica for the detection of Cu 2+ ions from aqueous environment.
ISSN:2046-2069
2046-2069
DOI:10.1039/C4RA10419F