Journal
RSC ADVANCES
Volume 5, Issue 101, Pages 82887-82893Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/c5ra15546k
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Funding
- Fundamental Research Funds for the National Natural Science Foundation of China [61178057]
- Central Universities [CXLX12_0085]
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A novel Schiff base-based multi-target dosimeter for Hg2+, Fe3+ and Au3+ has been designed and synthesized. Upon addition of Hg2+, Fe3+ and Au3+ to the aqueous solution of compound BODIPY-TRIA, the dosimeter gave a rapid fluorescence response and displayed an obvious fluorescence enhancement with a blue-shift. Meanwhile, a sharp color change from purple to pale yellow occurred, which was readily detected by the naked eye. The hydrolysis of the Schiff base promoted by Hg2+, Fe3+ and Au3+ has been discussed, and the possible mechanism was confirmed by H-1 NMR and MS studies. The dosimeter showed high sensitivity (10 nM for Au3+), good stability, and excellent selectivity for Hg2+, Fe3+ and Au3+ with interference by other metal ions.
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