1. National Center of Mass Spectrometry in Changchun & Jilin Province Key Laboratory of Chinese Medicine Chemistry and Mass Spectrometry, Changchun Institute of Applied Chemistry; Chinese Academy of Sciences; Changchun 130022 China
2. University of the Chinese Academy of Sciences; Beijing 100039 China
3. Institute of Chinese Materia Medica; China Academy of Chinese Medical Sciences; Beijing 100700 China