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Optical Sensing of Fluoride Through a Self-Organized Fluorescent Ensemble of Quinizarin-Al (III) Complex

Publication Type : Journal Article

Publisher : Journal of AOAC International

Source : Journal of AOAC International, 99(6), 1636-1641.

Url : https://www.researchgate.net/publication/308172899_Optical_Sensing_of_Fluoride_Through_a_Self-Organized_Fluorescent_Ensemble_of_Quinizarin-AlIII_Complex

Campus : Bengaluru

School : School of Engineering

Center : Amrita Innovation & Research

Department : Chemistry

Verified : Yes

Year : 2016

Abstract : A one-pot, cost-effective system for sensing fluoride ions using quinizarin as a novel chromophore is reported. Quinizarin complexes with Al(III) to form a self-organized turn-on fluorescence system in methanol. In the presence of fluoride ions, this system undergoes a subsequent ligand swap reaction with the fluoride ion and consequently the fluorescence turns off, delivering a sensitive route for the estimation of fluoride. This domino effect presents a sensitive and selective reaction system for the detection of fluoride ions in the concentration range 0.5-15 ppm. The study was performed using spectrophotometric and spectrofluorimetric techniques. Various analytical parameters such as pH, equilibration time, ambient temperature, and applicability of the method have been reported along with the study of the associated interfering ions.

Cite this Research Publication : Karnam, Lohith & Adurty, Sunil & Belliraj, Siva Kumar & Neelakantan, Sundaresan. (2016). Optical Sensing of Fluoride Through a Self-Organized Fluorescent Ensemble of Quinizarin-Al(III) Complex. Journal of AOAC International. 99. 10.5740/jaoacint.16-0045.

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