A highly selective fluorescent probe for Zn2+ based on a rhodamine-6G dye derivative modified by a furan unit. (1st April 2018)

• Record Type: Journal Article
• Authors: Qiao, Rui; Xiong, Wen-Zhang; Bai, Cui-Bing; Zhang, Lin; Zhu, Meng-Meng; Chen, Shui-Sheng; Miao, Hui
• Is Part Of: Journal of chemical research. Volume 42:Number 4(2018)
• Page Start: 194
• Page End: 197
• Publication Date: 2018-04-01
• Subjects: Chemistry -- Research -- Periodicals; Chemistry -- Periodicals; 540.5
• DOI: 10.3184/174751918X15232837452384
• Languages: English
• ISSNs: 1747-5198

Abstract

A fluorescent probe for Zn2+ based on rhodamine-6G has been synthesised. It showed excellent fluorescent specific selectivity and high sensitivity for Zn 2+ compared with other metal ions, such as Fe 3+, Cr 3+, Hg 2+, Ag +, Ca 2+, Cu 2+, Pb 2+, Cd 2+, Ni 2+, Co 2+ and Mg 2+, in CH3 CN–phosphate buffer saline solution. The distinct colour change and the rapid emergence of fluorescence emission provided 'naked-eye' detection of Zn 2+. The detection limit of the fluorescent probe towards Zn 2+ was 1.78 μM. In addition, the fluorescence lifetime and fluorescence quantum yield were measured.