| LC-MS | Liquid Chromatography with Mass spectrometry |
| HMDB | Human Metabolome Database |
| NMR | Nuclear Magnetic Resonance |
| GC | Gas Chromatography |
| DFI | Direct Flow Injection |
| ICP | Inductively Coupled Plasma |
| HPLC | High-Performance Liquid Chromatography |
| QC | Quality Control |
| ACN | Acetonitrile |
| AGC | Automatic Gain Control |
| HCD | Higher-energy Collisional Dissociation |
| CE | Capillary Electrophoresis |