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A rhodamine‐based fluorescent probe for Cu(II) determination in aqueous solution
Author(s) -
Mao Jie,
Cheng Junhua,
Wang Xuchun,
Wang Shui,
Cheng Nianshou,
Wang Junfeng
Publication year - 2015
Publication title -
luminescence
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.428
H-Index - 45
eISSN - 1522-7243
pISSN - 1522-7235
DOI - 10.1002/bio.2717
Subject(s) - fluorescence , aqueous solution , detection limit , rhodamine , metal ions in aqueous solution , chemistry , selectivity , copper , analytical chemistry (journal) , ion , metal , rhodamine b , photochemistry , chromatography , optics , organic chemistry , physics , photocatalysis , catalysis
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.