Trace enrichment and characterization of polyphenols in Bistort Rhizoma using weak anion-exchange solid phase extraction and high performance liquid chromatography-quadrupole time-of-flight mass spectrometry

2016 ◽  
Vol 119 ◽  
pp. 91-98 ◽  
Author(s):  
Shao-Teng Wang ◽  
Hua Yang ◽  
Wen Gao ◽  
Hui-Jun Li ◽  
Ping Li
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