1. State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Key Laboratory for Bio-Nanotechnology and Molecular Engineering of Hunan Province, Hunan University, Changsha 410082, P. R. China
2. China Tobacco Guangxi Industrial Co., LTD, Nanning 530001, China
3. College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082, P. R. China