Web10 aug. 2024 · The general separation process was as follows: first, the extraction part of ethyl acetate collected seven components according to the chromatographic peaks of the sample through the medium pressure chromatographic separation system. Next, the separation effects of Fr2 on five different preparation columns were compared. Web10 jun. 2024 · Reversed-phase liquid chromatography coupled with middle chromatogram isolated gel column was employed for the efficient preparative separation of the arylbutanoid-type phenol [(-)-rhododendrin] from Saxifraga tangutica.Universal C18 (XTerra C18) and XCharge C18 columns were compared for (-)-rhododendrin fraction …
Preparative separation of isoquinoline alkaloids from Corydalis ...
Web1 apr. 2024 · The most commonly used solid phases for pretreatment stage are silica gel, sephadex gel, polyamide, middle chromatogram isolated gel and RP C18 silica. The selection of the most suitable sample pretreatment material for the enrichment of target compounds from F. luteovirens was of great importance for subsequent purification step. WebFifteen compounds (1-15) were isolated from the 95% EtOH extract of the whole herb of Physalis minima by various chromatography techniques including silica gel, Sephadex LH-20, middle chromatogram isolated gel (MCI), octadecyl silica (ODS), and semi-preparative high performance liquid chromatography ( HPLC ). the task force on 21st century policing
Target separation of flavonoids from - Wiley Online Library
WebReversed‐phase liquid chromatography coupled with middle chromatogram isolated gel column was employed for the efficient preparative separation of the arylbutanoid‐type phenol (... Web10 aug. 2024 · The general separation process was as follows: first, the extraction part of ethyl acetate collected seven components according to the chromatographic … Web28 feb. 2024 · Results demonstrate that a middle chromatogram isolated gel column coupled with positively charged reversed-phase liquid chromatography is effective for … the task film