Photochemical characteristics of diclofenac and its photodegradation of inclusion complexes with β-cyclodextrins
摘要：
Diclofenac is one of most frequently detected compounds in the water cycle. In this work, the effect of initial concentration, liquid inclusion complexes with #946;-Cyclodextrins (#946;-CDs) on the photodegradation of diclofenac were studied. Six phototransformation products were detected by HPLC chromatograms. UV-absorption spectra of diclofenac and phototransformation products were determined. One of the phototransformation products was identified. The degradation followed pseudo-first-order kinetics. The experiment showed that irradiation of diclofenac in the presence of #946;-CDs increase photodegradation rate and determined the optimal molar ratio of diclofenac to #946;-CDs as 1:2. The reduced photohaemolytic activity of diclofenac in the presence of #946;-CDs may be attributed to the sequestering and stabilizing of the radical intermediates and /or photoproducts by complexation.
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DOI：
10.1590/S0100-40422012000300022
被引量：
年份：
2012
国家科技图书文献中心
(权威机构)
Semantic Scholar
掌桥科研
Ingenta
dx.doi.org
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