Detection of Hg2+ in Aqueous Media by A New Xanthene Based Schiff Base Sensor

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Journal of Anatolian Environmental and Animal Sciences
Volume:5 Issue:1
Detection of Hg2+ in Aqueous Media by A New Xanthene Based Schiff Base Sensor

Detection of Hg2+ in Aqueous Media by A New Xanthene Based Schiff Base Sensor

Pages : 74-79

View : 55 | Download : 15

Publication Date : 2020-03-31

Article Type : Research Paper

Abstract :A xanthene-based colorimetric sensor, 2-insert ignore into journalissuearticles values(insert ignore into journalissuearticles values(5-chloro-2-oxoindolin-3-ylidene);amino);-3`,6`-bisinsert ignore into journalissuearticles values(diethylamino);spiro[isoindoline-1,9`-xanthen]-3-one, was designed and its metal sensing properties was evaluated in aqueous solutions. The sensor showed colorimetric response toward Hg2+ from colorless solution to pink among various metal ions such as Na+, K+, Mg2+, Ca2+, Mn2+, Fe3+, Co2+, Ni2+, Cu2+, Zn2+, Al3+, Cd2+ and Pb2+. The addition of Hg2+ exhibit an absorption enhancement of the sensor based on a spirocycle ring‐opening process and a subsequent hydrolysis reaction. The detection limit of the sensor for Hg2+ was found to be 7.88×10−8 M.
Keywords : Rhodamine B hydrazide, Isatin, Mercury sensor

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