Kumawat, Lokesh Kumar and Asif, Mohammad and Gupta, Vinod Kumar
(2017)
Dual ion selective fluorescence sensor with potential applications in sample monitoring and membrane sensing.
Sensors and Actuators B: Chemical, 241.
pp. 1090-1098.
ISSN 0925-4005
Abstract
A new sensing functionalized chemosensor 3-hydroxy-2-(1H-indol-3-yl)-4H-chromen-4-one (M1) was readily prepared in facile reaction conditions and explored its sensing nature response towards metal ions in semi-aqueous medium. The chemosensor M1 exhibited high selective and sensitive fluorescence turn “off-on” response for Al3+ and Zn2+ ions in the existence of several metal ions and the changes are enabled for naked-eye detection. These high selectivity expressed by high binding constants 2.62 × 104 (Al3+) and 1.92 × 104 M−1 (Zn2+) calculated by the Benesi-Hildebrand equation based on the emission studies. The binding strategy was also supported by 1H NMR titration.
| Item Type: |
Article
|
| Keywords: |
Chemosensor;
Dual metal ion;
Reversibility;
Real sample;
Al3+;
Zn2+; |
| Academic Unit: |
Faculty of Science and Engineering > Chemistry |
| Item ID: |
11600 |
| Identification Number: |
https://doi.org/10.1016/j.snb.2016.10.031 |
| Depositing User: |
IR Editor
|
| Date Deposited: |
05 Nov 2019 16:57 |
| Journal or Publication Title: |
Sensors and Actuators B: Chemical |
| Publisher: |
Elsevier |
| Refereed: |
Yes |
| URI: |
|
| Use Licence: |
This item is available under a Creative Commons Attribution Non Commercial Share Alike Licence (CC BY-NC-SA). Details of this licence are available
here |
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