A new azine derivative colorimetric and fluorescent dual-channel probe for cyanide detection

Spectrochimica Acta. Part A, Molecular and Biomolecular Spectroscopy
Bin YuJing Li

Abstract

A novel azine derivative colorimetric and fluorescent dual-channel probe salicylaldehyde hydrazine-3,5-dibromosalicylaldehyde (1) has been designed, synthesized and characterized. The probe 1 is confirmed to have especial selectivity and good sensitivity on detecting CN- via UV-vis absorption and fluorescence spectrum in aqueous solution (H2O/DMSO, 1:4, v/v). This colorimetric and fluorescent dual-channel probe response to CN- owed to the deprotonation process and established the mechanism by using 1H NMR spectroscopy. Further researches showed that the detection limit of the probe 1 to CN- anions is 8.01×10-9M, significantly lower than the maximum level 1.9×10-6M in potable water from WHO guidelines.

Citations

Apr 5, 2018·Molecules : a Journal of Synthetic Chemistry and Natural Product Chemistry·Lu-Mei PuWen-Kui Dong
Sep 11, 2019·Organic & Biomolecular Chemistry·Sumit S ChourasiyaPrasad V Bharatam
Aug 3, 2019·Molecules : a Journal of Synthetic Chemistry and Natural Product Chemistry·Muhan ChenZhangjie Huang

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