Supercritical fluid extraction of quinolizidine alkaloids from Sophora flavescens Ait. and purification by high-speed counter-current chromatography

2007 ◽  
Vol 1145 (1-2) ◽  
pp. 123-127 ◽  
Author(s):  
Jian Ya Ling ◽  
Guo Ying Zhang ◽  
Zhao Jie Cui ◽  
Chang Kai Zhang
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