1. Shandong Provincial Key Laboratory of Molecular Engineering, School of Chemistry and Chemical Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250353, P. R. China
2. Key Laboratory of Leather Chemistry and Engineering of Ministry of Education, College of Biomass Science and Engineering, Sichuan University, Chengdu 610065, P. R. China
3. College of Chemistry, Chemical Engineering and Materials Science, Shandong Normal University, Jinan 250100, P. R. China
4. Laboratory Management Office, Shandong University of Traditional Chinese Medicine, Jinan 250353, P. R. China