1. Department of Analytical Chemistry; China Pharmaceutical University; Nanjing P. R. China
2. Key Laboratory of Drug Quality Control and Pharmacovigilance (Ministry of Education); China Pharmaceutical University; Nanjing P. R. China
3. State Key Laboratory of Natural Medicines; China Pharmaceutical University; Nanjing P. R. China
4. Key Laboratory of New Drug Delivery System of Chinese Meteria Medica; Jiangsu Provincial Academy of Chinese Medicine; Nanjing P. R. China
5. Department of Pharmacy; Zhejiang Pharmaceutical College; Ningbo P. R. China
6. College of Chemistry and Molecular Engineering; Peking University; Beijing P. R. China