کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1208656 | 965312 | 2006 | 6 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
High-performance liquid chromatographic enantioseparation of β-amino acid stereoisomers on a (+)-(18-crown-6)-2,3,11,12-tetracarboxylic acid-based chiral stationary phase
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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 enantioseparation of β-amino acid stereoisomers on a (+)-(18-crown-6)-2,3,11,12-tetracarboxylic acid-based chiral stationary phase High-performance liquid chromatographic enantioseparation of β-amino acid stereoisomers on a (+)-(18-crown-6)-2,3,11,12-tetracarboxylic acid-based chiral stationary phase](/preview/png/1208656.png)
چکیده انگلیسی
Direct reversed-phase high-performance liquid chromatographic methods were developed for the separation of enantiomers of 14 unnatural β-amino acids, including several β-3-homo-amino acids on a chiral stationary phase containing (+)-(18-crown-6)-2,3,11,12-tetracarboxylic acid bonded to 3-aminopropyl silica gel as chiral selector. The effects of the organic and the acidic modifiers and the mobile phase composition on the separation were investigated. The natures and positions of the substituents on the aromatic ring substantially influenced the retention and enantioseparation. The elution sequence in most cases was determined and the R enantiomers were eluteted before the S enantiomers.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Chromatography A - Volume 1125, Issue 1, 25 August 2006, Pages 138–143
Journal: Journal of Chromatography A - Volume 1125, Issue 1, 25 August 2006, Pages 138–143
نویسندگان
Róbert Berkecz, Anita Sztojkov-Ivanov, István Ilisz, Enikő Forró, Ferenc Fülöp, Myung Ho Hyun, Antal Péter,