1. State Key Laboratory of Applied Organic Chemistry, Institute of Biochemical Engineering & Environmental Technology, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, P. R. China
2. State Key Laboratory for Marine Corrosion and Protection, Luoyang Ship Material Research Institute (LSMRI), Xiamen, 361101, P. R. China
3. Gansu Provincial Center for Disease Control and Prevention, Lanzhou 730000, P. R. China
4. The Second Clinical Medical College, Lanzhou University, Lanzhou 730030, P. R. China