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A hydrazono-quinoline-based chemosensor sensing In3+ and Zn2+ via fluorescence turn-on and ClO- via color change in aqueous solution

Abstract

A new multi-target sensor HQD ((E)-5-(diethylamino)-2-((2-(quinolin-2-yl)hydrazono)methyl)phenol), based on hydrazono-quinoline moiety, has been developed. Sensor HQD showed selectivity toward In3+ and Zn2+ via fluorescence turn-on and ClO- via color change from yellow to colorless. The respective limits of detection for In3+, Zn2+ and ClO- were calculated to be 0.05, 0.08 and 3.10 μM, and far below than WHO standard for zinc in drinking water (76.5 μM). Moreover, quantification of In3+ and Zn2+ was possible in real water sample. The detection processes of In3+, Zn2+ and ClO- by HQD were demonstrated with the analyses of ESI-MS data, Job plots, UV-Vis and 1H NMR titrations and computational studies.

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Publication details

The article was received on 20 Feb 2019, accepted on 07 Apr 2019 and first published on 08 Apr 2019


Article type: Paper
DOI: 10.1039/C9NJ00899C
Citation: New J. Chem., 2019, Accepted Manuscript

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    A hydrazono-quinoline-based chemosensor sensing In3+ and Zn2+ via fluorescence turn-on and ClO- via color change in aqueous solution

    C. Kim and A. Kim, New J. Chem., 2019, Accepted Manuscript , DOI: 10.1039/C9NJ00899C

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