## Abstract This study employed the online HPLC‐2,2′‐azino‐__bis__(3‐ethylbenzthiazoline‐6‐sulphonic acid) (ABTS)^+^ bioassay to rapidly determine the antioxidant compounds occurring in the crude extract of __Alnus japonica__. The negative peaks of the ABTS^+^ radical scavenging detection system, w
Preparative isolation and purification of alkannin/shikonin derivatives from natural products by high-speed counter-current chromatography
✍ Scribed by Andreana N. Assimopoulou; Sonja Sturm; Hermann Stuppner; Vassilios P. Papageorgiou
- Publisher
- John Wiley and Sons
- Year
- 2009
- Tongue
- English
- Weight
- 799 KB
- Volume
- 23
- Category
- Article
- ISSN
- 0269-3879
- DOI
- 10.1002/bmc.1101
No coin nor oath required. For personal study only.
📜 SIMILAR VOLUMES
## Abstract High‐speed counter‐current chromatography (HSCCC) was applied to the preparative isolation and purification of two amides from __Mallotus lianus__ Croiz. In a single HSCCC separation, using the two‐phase solvent system composed of __n__‐hexane/ethyl acetate/methanol/water (5:1:5:1 v/v),
## Abstract An efficient separation method of using high‐speed counter‐current chromatography was successfully established to directly purify cytotoxic transformed products of cinobufagin by __Cordyceps militaris__. The two‐phase solvent system composed of __n__‐hexane–ethyl acetate–methanol–water
## Abstract In this paper, high‐speed counter‐current chromatography (HSCCC), assisted with ESI‐MS, was first successfully applied to the preparative separation of three macrolide antibiotics, brefeldin A (12.6 mg, 99.0%), 7′‐__O__‐formylbrefeldin A (6.5 mg, 95.0%) and 7′‐__O__‐acetylbrefeldin A (5
Preparative isolation and purification of atractylon and atractylenolide III from the Chinese medicinal plant Atractylodes macrocephala by high-speed counter-current chromatography The medicinal plant Atractylodes macrocephala (Baizhu in Chinese) has been widely used in traditional Chinese medicine
## Abstract High‐speed counter‐current chromatography (HSCCC) was successfully applied for the preparative separation and purification of alkaloids from __Corydalis bungeana__ Turcz. (Kudiding in Chinese) for the first time. After the measurement of partition coefficient of seven target alkaloids i