期刊
DYES AND PIGMENTS
卷 96, 期 3, 页码 770-773出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.dyepig.2011.07.001
关键词
Chemodosimeter; Selectivity; Ce4+; Fluorescence; Lanthanide ions; Oxidation
资金
- National Natural Scientific Foundation of China [21201092]
- Fundamental Research Funds for the Central Universities [Lzujbky-2012-65, Lzujbky-2012-203]
A rhodamine-based probe bearing an N,N-dimethylaniline unit was developed as a fluorescent chemodosimeter for Ce4+ in aqueous media. Importantly, the sensor can selectively respond to Ce4+ over other commonly coexistent metal ions (such as La3+, Ce3+, Pr3+, Nd3+, Sm3+, Eu3+, Gd3+, Er3+, Tb3+, Ho3+, Tm3+, Yb3+, Lu3+, Y3+) in aqueous media with a rapid response time. The system, which utilizes an irreversible Ce4+-promoted oxidation reaction, responds instantaneously at room temperature with linear proportionality to the amount of Ce4+. (C) 2011 Elsevier Ltd. All rights reserved.
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