1. College of Pharmacy, Jiamusi University, Jiamusi, China
2. China National Institute of Standardization, Beijing, PR China
3. Key Laboratory for Natural Active Pharmaceutical Constituents Research in Universities of Shandong Province, Shandong Analysis and Test Center, Qilu University of Technology (Shandong Academy of Sciences), Jinan, China
4. Beijing Tea Quality Supervision and Inspection Station, Beijing, China
5. College of Science, China Agricultural University, Beijing, China
6. Beijing Knorth Co. Ltd, Beijing, China