Determination of berberine and palmatine in Phellodendri Cortex using ion-pair supercritical fluid chromatography on-line coupled with ion-pair supercritical fluid extraction by on-column trapping

1997 ◽  
Vol 786 (2) ◽  
pp. 371-376 ◽  
Author(s):  
Keiichi Suto ◽  
Shinichi Kakinuma ◽  
Yuji Ito ◽  
Kazuhiko Sagara ◽  
Hideki Iwasaki ◽  
...  
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