1. School of Traditional Chinese Pharmacy
2. China Pharmaceutical University
3. Nanjing 211198
4. P. R. China
5. Department of Pharmaceutical Analysis
6. Nanjing 210009
7. China
8. Osaka University of Pharmaceutical Sciences
9. Takatsuki
10. Japan
11. Research Institute for Science and Technology
12. Tokyo University of Science
13. Noda
14. Key Laboratory of Biomedical Functional Materials