期刊
JOURNAL OF SEPARATION SCIENCE
卷 32, 期 20, 页码 3550-3554出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/jssc.200900413
关键词
Fangchinoline; Ionic liquids; Stephaniae tetrandrae; Tetrandrine; Ultrasound-assisted extraction
资金
- Natural Science Foundation of China [20872083]
- Key Science and Technology Program of Shandong Province
An ionic liquid-based ultrasound-assisted extraction method has been developed for the effective extraction of fangchinoline and tetrandrine from Stephaniae tetrandrae. The effects of some ultrasound-assisted extraction parameters including the concentration of [BMIM][BF4], pH, ultrasonic power and time were investigated to optimize the ultrasound-assisted extraction conditions. Compared to the regular ultrasound-assisted extraction and traditional refluent extraction, the proposed [BMIM][BF4]-based ultrasound-assisted extraction offered shorter extraction times (from 6 h to 40 min) and remarkable higher efficiencies (approximately 30% improved), which supported the suitability of the proposed approach. In addition, the proposed approach was confirmed by the good correlation coefficient (R-2), recovery and reproducibility (RSD, n = 5), which were in the range of 0.9992-0.9995, 85.5-101.1%, and 1.87-4.33%, respectively.
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