Xinxin Liu obtained her master of Science Degree in 2012 from Shenyang Pharmaceutical University. In July 2013, she joined Dalian Institute of Chemical Physics, and her main two directions of work are: (1) separation and analysis of trace components in different systems based on LC-MS, including omics analysis related to neurodegenerative diseases, absolute quantitative analysis of endogenous hormones, etc; (2)pharmacodynamic and pharmacokinetic evaluation based on animal model. She published 3 articles in domestic and foreign journals, applied for 8 invention patents and was granted 1 invention patent.