Using Anion-Exchange Chromatography Coupled with High Resolution Accurate Mass Spectrometry for TCA Pathway Targeted Metabolomics Analysis Terri Christison, 1 Junhua Wang, 2 Shen S. Hu, 3 Linda Lopez, 1 Yingying Huang, Carl Fisher 1 Thermo Fisher Scienti c, Sunnyvale, CA, USA; 2 Thermo Fisher Scienti c. San Jose, CA, USA;