期刊
MATERIALS SCIENCE & ENGINEERING C-MATERIALS FOR BIOLOGICAL APPLICATIONS
卷 30, 期 7, 页码 929-933出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.msec.2010.04.008
关键词
Europium; Ratiometric; Chemosensor; Fluorescence
资金
- Research Council of University of Tehran
(4E)-4-(2-phenyldiazenyl)-2-((E)-(2-aminoethylimino)methyl)phenol (PAMP) was synthesized for the first time and used as a ratiometric fluorescent chemosensor for recognition of Eu3+ ions in acetonitrile solution. PAMP shows a fluorescent emission at 536 nm. When it forms a complex with Eu3+ ion, two new fluorescent enhancements at 418 and 496 nm appeared. In acetonitrile solution, the blue shift of fluorescent emission upon europium binding is due to the formation of a 1:1 metal ligand complex. The chemosensor shows a linear response toward Eu3+ in the range of 8.3 x 10(-8) M to 8.3 x 10(-6)M. The new fluorescent probe exhibits high selectivity toward Eu3+ ions over a large number of interfering cations. (C) 2010 Elsevier B.V. All rights reserved.
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