| UPLC | Ultra performance liquid chromatography |
| QTOF | Quadrupole time of flight |
| ESI | Electrospray ionization |
| MALDI | Matrix-assisted laser desorption ionization |
| MS | Mass spectrometry |
| IMS | Imaging mass spectrometry |
| LOD | Limits of detection |
| RT | Retention time |
| PCA | Principal component analysis |
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