کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
5134843 1493405 2017 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Gas chromatographic-mass spectrometric determination of glycosides without prior hydrolysis
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی آنالیزی یا شیمی تجزیه
پیش نمایش صفحه اول مقاله
Gas chromatographic-mass spectrometric determination of glycosides without prior hydrolysis
چکیده انگلیسی


- Converted to their TMS derivatives glycosides are thermally stable.
- The retention indices of 71 silanised glycosides were obtained.
- Retention indices of TMS-glycosides and related TMS-aglycones display linear correlation.

The article presents for the first time the linear temperature programmed retention indices on a column with stationary phases of 5% phenylpolydimethyl silicone and the mass spectra of trimethylsilyl (TMS) derivatives of 71 glycosides (both commercial preparations and compounds extracted from plant tissues) which were not characterized earlier by these parameters. Converted to their TMS derivatives, the glycosides were thermally stable: they exhibited single peaks on their chromatograms without products of thermal decomposition. Therefore this work demonstrates the suitability of high resolution-high temperature gas chromatography (HR-HT/GC) to analyse different groups of glycosides including compounds with disaccharide moieties without the necessity of their hydrolyses. Since a limited number of commercial and plant-isolated glycosides were available, an attempt was made to assess their retention indices using the known “structure-retention relationships” approach. It was demonstrated that the retention indices of silanised glycosides and their aglycones were characterized by a linear dependence.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Chromatography A - Volume 1521, 27 October 2017, Pages 161-166
نویسندگان
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