期刊
SENSORS AND ACTUATORS B-CHEMICAL
卷 166, 期 -, 页码 44-49出版社
ELSEVIER SCIENCE SA
DOI: 10.1016/j.snb.2011.11.081
关键词
Hypochlorite; Cuprous; Fluorescein; Fluorescence; UV-vis spectroscopy
资金
- National Natural Science Foundation of China [20801032, 21072119, 21102086]
- Shanxi Province Science Foundation for Youths [2009021006-2]
- Shanxi Province Foundation for Returnee [200815]
- Program for the Top Young Academic Leaders of Higher Learning Institutions of Shanxi (TYAL)
- Shanxi Province Foundation for Selected Returnees [2010]
- Shanxi Province Graduate Innovation and Creativity Funds [20103019]
A fluorescein derivative, 2-pyridylaldehyde fluorescein hydrazone (FHP), was developed for detection of hypochlorites. This probe functioned by oxidizing Cu+. to Cu2+ to form a Cu2+ complex, which produced colorimetric and fluorescent signals that were monitored by ultraviolet-visible and fluorescence spectrophotometry, respectively. Other common anions, including F-, Cl-, ClO3-, NO2-, CN-, S2-, SCN-, P2O74-, AcO-, CO32-, SO42-. ClO4-, did not interfere with the hypochlorite detection, and hypochlorites could be detected at low micromolar levels in aqueous solutions. The color change on reaction with hypochlorites was rapid and visible to the naked eye. The sensor could be applied to the detection of hypochlorites tap water. (C) 2011 Elsevier B.V. All rights reserved.
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