کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5412762 | 1506614 | 2010 | 4 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Qualitative observation of chemical change rate for quercetin in basic medium characterized by time resolved UV-vis spectroscopy
دانلود مقاله + سفارش ترجمه
دانلود مقاله ISI انگلیسی
رایگان برای ایرانیان
کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی تئوریک و عملی
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Qualitative observation of chemical change rate for quercetin in basic medium characterized by time resolved UV-vis spectroscopy Qualitative observation of chemical change rate for quercetin in basic medium characterized by time resolved UV-vis spectroscopy](/preview/png/5412762.png)
چکیده انگلیسی
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.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Molecular Liquids - Volume 151, Issues 2â3, 10 February 2010, Pages 134-137
Journal: Journal of Molecular Liquids - Volume 151, Issues 2â3, 10 February 2010, Pages 134-137
نویسندگان
LiJun Yang, Ping Li, YanJun Gao, DaCheng Wu,