Impurities preparation of sodium tanshinone IIA sulfonate by high-speed counter-current chromatography and identification by liquid chromatography/multistage tandem mass spectrometry

2013 ◽  
Vol 1288 ◽  
pp. 28-34 ◽  
Author(s):  
Shanqiao Chen ◽  
Xin Zhao ◽  
You Li ◽  
Dan Yang ◽  
Tingting Zhou ◽  
...  
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