1. School of Pharmaceutical Sciences
2. Jilin University
3. Changchun 130012
4. China
5. State Key Laboratory of Electroanalytical Chemistry
6. National Center for Mass Spectrometry in Changchun
7. Jilin Province Key Laboratory of Chinese Medicine Chemistry and Mass Spectrometry
8. Changchun Institute of Applied Chemistry
9. Chinese Academy of Sciences
10. Key Laboratory of Magnetic Resonance in Biological Systems