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- W2356932014 abstract "A deuterium light source was used to provide the continuous light,time resolved UV-Vis absorption spectra of quercetin reacting with sodium hydroxide were measured by using an intensified CCD spectroscopic detector.The measuing system was controled synchronously by using a digital delay generator DG535.A total number of 50 spectra with the exposure time of 0.1 ms for each spectrum and the time interval of 20 ms between two neighbouring spectra have been acquired.Results show the disappearing process of the typical bands centered on 254 nm and 374nm of quercetin,the growing and disappearing processes of new bands centered on 283 nm and 427 nm of the intermediate product and the growing process of the new band centered on 314 nm of the final product obviously.The reaction finished within about 1 second,the information during the reaction can not be obtained by using a conventional chemical method or a common spectrophotometer." @default.
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- W2356932014 date "2007-01-01" @default.
- W2356932014 modified "2023-09-23" @default.
- W2356932014 title "Time resolved UV-Vis absorption spectra of quercetin reacting with sodium hydroxide" @default.
- W2356932014 hasPublicationYear "2007" @default.
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