A rhodamine‐based fluorescent probe for Cu(II) determination in aqueous solution. (15th July 2014)

• Record Type: Journal Article
• Authors: Mao, Jie; Cheng, Junhua; Wang, Xuchun; Wang, Shui; Cheng, Nianshou; Wang, Junfeng
• Is Part Of: Luminescence. Volume 30:Number 2(2015:Mar./Apr.)
• Page Start: 221
• Page End: 227
• Publication Date: 2014-07-15
• Subjects: Cu -- fluorescence probe -- rhodamine -- solid‐phase extraction; Luminescence -- Periodicals; Bioluminescence -- Periodicals; Chemiluminescence -- Periodicals; Luminescence -- Periodicals; 535.35
• DOI: 10.1002/bio.2717
• Languages: English
• ISSNs: 1522-7235

Abstract

ABSTRACT: An 'off–on' rhodamine‐based fluorescence probe for the selective detection of Cu(II) has been designed, exploiting the guest‐induced structure transform mechanism. This system shows a sharp Cu(II)‐selective fluorescence enhancement response in an aqueous system under physiological pH, and possesses high selectivity against a background of environmentally and biologically relevant metal ions. Under optimum conditions, the fluorescence intensity enhancement of this system is linearly proportional to the Cu(II) concentration from 50 nM to 6.0 μM with a detection limit of 29 nM. Copyright © 2014 John Wiley & Sons, Ltd.