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Detection of minor constituents in TongMai Granules using NP×RP off-line two-dimensional liquid chromatography coupled with orbitrap mass spectrometry
Lulu Xu, Zhanpeng Shang, Yue Chai, Yang Zhang, Rong Yu, Min Ye, Xue Qiao
Journal of Chinese Pharmaceutical Sciences . 2020, (11): 793 -803 .  DOI: 10.5246/jcps.2020.11.072