کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
9749067 | 1493800 | 2005 | 5 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Isolation and purification of four flavonoid constituents from the flowers of Paeonia suffruticosa by high-speed counter-current chromatography
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی آنالیزی یا شیمی تجزیه
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Isolation and purification of four flavonoid constituents from the flowers of Paeonia suffruticosa by high-speed counter-current chromatography Isolation and purification of four flavonoid constituents from the flowers of Paeonia suffruticosa by high-speed counter-current chromatography](/preview/png/9749067.png)
چکیده انگلیسی
Four flavonoids, apigenin-7-O-neohesperidoside, luteolin-7-O-glucoside, apigenin-7-O-glucoside and kaempferol-7-O-glucoside have been isolated and purified for the first time from the flowers of Paeonia suffruticosa by high-speed counter-current chromatography with a two-phase solvent system composed of ethyl acetate-ethanol-acetic acid-water (4:1:0.25:5, v/v). Then, 5Â mg apigenin-7-O-neohesperidoside, 4Â mg luteolin-7-O-glucoside, 9Â mg apigenin-7-O-glucoside and 2.5Â mg kaempferol-7-O-glucoside could be obtained after injecting 40Â mg sample and their purities were 94, 97, 97 and 96%, respectively. All these constituents were identified by mass spectrometry and nuclear magnetic resonance.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Chromatography A - Volume 1075, Issues 1â2, 20 May 2005, Pages 127-131
Journal: Journal of Chromatography A - Volume 1075, Issues 1â2, 20 May 2005, Pages 127-131
نویسندگان
Xiao Wang, Chuange Cheng, Qinglei Sun, Fuwei Li, Jianhua Liu, Chengchao Zheng,