期刊
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
卷 150, 期 -, 页码 21-25出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.saa.2015.05.041
关键词
Fluorescent probe; Schiff-base; Aluminum; Detection limit
类别
资金
- National Natural Science Foundation of China [81171337]
- Gansu NSF [1308RJZA115]
A novel Schiff base fluorescent probe, 1-phenyl-3-methyl-5-hydroxypyrazole-4-carbaldehyde (2'-methyl quinoline-4'-formyl) hydrazone (PMHCH), for selective detection of Al3+ has been designed and synthesized. Upon addition of various metal ions, the receptor only shows 286-fold enhancement of fluorescence intensity which might be attributed to a 1:1 stoichiometry between PMHCH and Al3+ and the photo-induced electron transfer progress in the present of Al3+ at 505 nm. More importantly, the detection limit of PMHCH for Al3+ could reach at 10(-7) M level. (c) 2015 Elsevier B.V. All rights reserved.
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