1. Beijing National Laboratory for Molecular Sciences, CAS Key Laboratory of Analytical Chemistry for Living Biosystems, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
2. Environmental Molecular Sciences Laboratory, Pacific Northwest National Laboratory, Richland, Washington 99354, United States
3. University of Chinese Academy of Sciences, Beijing 100049, China
4. National Centre for Mass Spectrometry in Beijing, Beijing 100190, China