1. Research and Development Center of China Tobacco Hunan Industrial Co. Ltd., Changsha, Hunan, China;
2. State Key Laboratory of Analytical Chemistry for Life Science, Collaborative Innovation Center of Chemistry for Life Sciences, School of Chemistry & Chemical Engineering and Center of Materials Analysis, Nanjing University, Nanjing, China;
3. College of Food Science and Engineering, Nanjing University of Finance and Economics, Nanjing, China