Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
5412762 | Journal of Molecular Liquids | 2010 | 4 Pages |
Abstract
Time resolved spectroscopy was applied to a real time investigation of chemical reaction of quercetin (5.0 Ã 10â 5 mol Lâ 1) with various concentrations of sodium hydroxide (from 5.0 Ã 10â 3 to 1.0 mol Lâ 1). The UV-vis absorption spectra acquired first reveal that there was an intermediate product with an absorption band centered at 427 nm formed during the reaction. The rates of chemical changes for quercetin in basic medium are also first obtained by the present work. The transient spectral information obtained is valuable for understanding the molecular mechanism of the reaction between quercetin and sodium hydroxide.
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Authors
LiJun Yang, Ping Li, YanJun Gao, DaCheng Wu,