1. National Center for Inorganic Mass Spectrometry in Shanghai
2. Shanghai Institute of Ceramics
3. Chinese Academy of Sciences
4. Shanghai 200050
5. People's Republic of China
6. State Key Laboratory of Biogeology and Environmental Geology
7. China University of Geosciences
8. Wuhan
9. Department of Chemistry
10. School of Life Sciences
11. University of Sussex
12. Brighton BN1 9QJ
13. UK