RSC Advances p. 21464 - 21470 (2015)
Update date:2022-08-11
Topics:
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.
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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