کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
9749035 | 1493799 | 2005 | 8 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
High-performance liquid chromatographic separation and chiroptical properties of the enantiomers of naringenin and other flavanones
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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: High-performance liquid chromatographic separation and chiroptical properties of the enantiomers of naringenin and other flavanones High-performance liquid chromatographic separation and chiroptical properties of the enantiomers of naringenin and other flavanones](/preview/png/9749035.png)
چکیده انگلیسی
The HPLC enantiomeric separation of naringenin, eriodictyol, hesperetin and pinocembrin was accomplished in the normal-phase mode using two polysaccharide-derived chiral stationary phases (Chiralcel OD-H and Chiralpak AS-H) and various n-hexane/alcohol mobile phases. The 3â²,4â² substituents pattern affect the enantioselectivity of these phases. Single enantiomers of naringenin were isolated by semipreparative HPLC and their CD spectra were measured and related to the absolute configuration by the exciton-coupling method. Online coupling HPLC/spectropolarimeter afforded the CD sign of the eluted peaks at a single wavelength, and the complete CD spectra of the eluted enantiomers were obtained by trapping them in the spectropolarimeter cell through a switching valve.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Chromatography A - Volume 1076, Issues 1â2, 27 May 2005, Pages 155-162
Journal: Journal of Chromatography A - Volume 1076, Issues 1â2, 27 May 2005, Pages 155-162
نویسندگان
Salvatore Caccamese, Carmelo Caruso, Nunziatina Parrinello, Anna Savarino,