1. Key Laboratory of Analytical Chemistry for Living Biosystems, Institute of Chemistry Chinese Academy of Sciences, Beijing 100190, China; Beijing National Laboratory for Molecular Sciences, Beijing 100190, Beijing, China
2. Department of Physics, National Dong Hwa University, Shoufeng, Hualien 97401, Taiwan
3. Beijing Center for Mass Spectrometry, Beijing 100190, China
4. Institute of Atomic and Molecular Sciences, Academia Sinica, Taipei 106, Taiwan
5. College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, China