1. Guangxi Zhuang Autonomous Region Ecological and Environmental Monitoring Centre, Nanning 530028, PR China
2. Shandong Provincial Key Laboratory of Detection Technology for Tumor Markers, College of Chemistry and Chemical Engineering, Linyi University, Linyi 276000, China
3. Guangxi Key Laboratory of Natural Polymer Chemistry and Physics, College of Chemistry and Materials Science, Nanning Normal University, Mingxiu Rd. 175, Nanning 530001, China
4. College of Chemistry and Chemical Engineering, Central South University, Changsha, Hunan Province 410083, P. R. China