1. Laboratory of Atmospheric Physico-Chemistry
2. Anhui Institute of Optics and Fine Mechanics
3. Chinese Academy of Sciences
4. Hefei
5. China
6. Institute of Analytical Chemistry of the Czech Academy of Sciences
7. CZ-60200 Brno
8. Czech Republic
9. National Synchrotron Radiation Laboratory
10. University of Science and Technology of China
11. Hefei 230029