A hydrazono-quinoline-based chemosensor sensing In3+ and Zn2+via fluorescence turn-on and ClO−via color change in aqueous solution. (25th April 2019)

• Record Type: Journal Article
• Authors: Kim, Ahran; Kim, Cheal
• Is Part Of: New journal of chemistry. Volume 43:Number 19(2019)
• Page Start: 7320
• Page End: 7328
• Publication Date: 2019-04-25
• Subjects: Chemistry -- Periodicals; Chimie -- Périodiques; 540
• DOI: 10.1039/c9nj00899c
• Languages: English
• ISSNs: 1144-0546

Abstract

Abstract : A multi-target sensor, based on hydrazono-quinoline, was developed for fluorescence turn-on detection of In 3+ and Zn 2+ and colorimetric detection of ClO − . Abstract : A new multi-target sensor, HQD (( E )-5-(diethylamino)-2-((2-(quinolin-2-yl)hydrazono)methyl)phenol), based on the hydrazono-quinoline moiety, was developed. SensorHQD showed selectivity toward In 3+ and Zn 2+ via fluorescence turn-on and ClO − via color change from yellow to colorless. The respective limits of detection for In 3+, Zn 2+ and ClO − were calculated to be 0.05, 0.08 and 3.10 μM, and were far below the WHO standard for zinc in drinking water (76.5 μM). Moreover, quantification of In 3+ and Zn 2+ was possible in real water samples. The processes of detection of In 3+, Zn 2+ and ClO − byHQD were demonstrated with the analyses of ESI-MS data, Job's plots, UV-Vis and 1 H NMR titrations and computational studies.