1. School of Pharmaceutical Sciences Jilin University Jilin P. R. China
2. National Center of Mass Spectrometry in Changchun Key Laboratory of Traditional Chinese Medicine Chemistry and Mass Spectrometry Jilin Province, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences Jilin P. R. China
3. College of Pharmacy, Changchun University of Chinese Medicine Changchun P. R. China
4. State Local Joint Engineering Research Center of Ginseng Breeding and Application Jilin Agricultural University Changchun P. R. China