Determination of free isomeric oleanolic acid and ursolic acid in Pterocephalus hookeri by capillary zone electrophoresis

2007 ◽  
Vol 43 (4) ◽  
pp. 1331-1334 ◽  
Author(s):  
Ping Yang ◽  
Yuqin Li ◽  
Xia Liu ◽  
Shengxiang Jiang
Talanta ◽  
2012 ◽  
Vol 91 ◽  
pp. 83-87 ◽  
Author(s):  
Lizhen Liu ◽  
Feng Feng ◽  
Shaomin Shuang ◽  
Yunfeng Bai ◽  
Martin M.F. Choi

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