Journal
RSC ADVANCES
Volume 5, Issue 28, Pages 21464-21470Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/c4ra10419f
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Funding
- DST, New Delhi, India under INSPIRE fellowship scheme
- DST, New Delhi, INDIA, under FAST TRACK scheme [CS-088/2013]
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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 Cu2+ ions in aqueous medium in the presence of a wide range of other competing cations (Ag+, Al3+, Ba2+, Ca2+, Cd2+, Co2+, Cr3+, Cs+, Fe2+, Fe3+, Li+, Mg2+, Mn2+, Na+, Ni2+, Pb2+, Zn2+, Hg2+ and Sr2+). With Cu2+, 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 Cu2+ ions from aqueous environment.
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