کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1199504 1493552 2014 9 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
On the method development of immobilized polysaccharide chiral stationary phases in supercritical fluid chromatography using an extended range of modifiers
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی آنالیزی یا شیمی تجزیه
پیش نمایش صفحه اول مقاله
On the method development of immobilized polysaccharide chiral stationary phases in supercritical fluid chromatography using an extended range of modifiers
چکیده انگلیسی


• Immobilized polysaccharide-derived columns SFC use with extended solvent range.
• Elution patterns with such solvents and the role of additives were studied.
• New solvents increase the resolution success rate achieved with alcohols in SFC.
• Non-protic solvents can overcome racemization, solubility and stability issues.

Polysaccharide-derived selectors are often used in the separation of enantiomers by supercritical fluid chromatography (SFC). Their recognition patterns are normally investigated with alcohols and acetonitrile as modifiers. The present paper describes the results of a research program designed by Pfizer and Chiral Technologies Inc. to explore the potential of other solvents (i.e. ethyl acetate, tetrahydrofuran, dichloromethane) in SFC by using a series of polysaccharide-derived supports with broad solvent versatility (CHIRALPAK IA, IB, IC, ID, IE and IF). The contribution of such extended solvent range to the overall success rate, as well as to overcome racemization, solubility and stability issues was confirmed by using standard non-proprietary samples and research molecules. Elution patterns with such lower polarity solvents, compared to alcohols, and the role of the different additives were also investigated.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Chromatography A - Volume 1374, 29 December 2014, Pages 238–246
نویسندگان
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