Ultrasensitive and highly selective detection of Cu2+ ions based on a new carbazole-Schiff

Jun Yin; Qijing Bing; Lin Wang; Guang Wang

doi:10.1016/j.saa.2017.08.057

Ultrasensitive and highly selective detection of Cu²⁺ ions based on a new carbazole-Schiff

Spectrochim Acta A Mol Biomol Spectrosc. 2018 Jan 15:189:495-501. doi: 10.1016/j.saa.2017.08.057. Epub 2017 Aug 24.

Authors

Jun Yin¹, Qijing Bing¹, Lin Wang¹, Guang Wang²

Affiliations

¹ Faculty of Chemistry, Northeast Normal University, Changchun 130024, PR China.
² Faculty of Chemistry, Northeast Normal University, Changchun 130024, PR China. Electronic address: wangg923@nenu.edu.cn.

PMID: 28846978
DOI: 10.1016/j.saa.2017.08.057

Abstract

A new chemosensor for Cu²⁺ based on Schiff base with high sensitivity and selectivity was designed and synthesized. The fluorescence intensity of the chemosensor in CH₃CN solution was enhanced 160-fold after the addition of 10 equiv. Cu²⁺ over other metal ions. In addition, it also facilitates colorimetric detection for Cu²⁺ in CH₃CN solution. The chemosensor displayed low detection limit and fast response time to Cu²⁺.

Keywords: Carbazole; Chemosensor; Copper ion; Fluorescence; Schiff base.