1. School of Chemistry and Chemical Engineering
2. University of South China
3. Hengyang 421001
4. P. R. China
5. CAS Key Laboratory of Marginal Sea Geology
6. South China Sea Institute of Oceanology
7. Chinese Academy of Sciences
8. Guangzhou 510301
9. Department of Chemistry
10. Guangdong University of Education
11. Guangzhou 510303
12. School of Chemistry
13. Central China Normal University
14. Wuhan 430079
15. Sun Yat-Sen University
16. Guangzhou 510275