| LC-MS/MS | liquid chromatography-tandem mass spectrometry |
| MRM | multiple reaction monitoring |
| E | emodin |
| EG | emodin-8-O-β-d-glucoside |
| C | chrysophanol |
| CG | chrysophanol-8-O-β-d-glucoside |
| P | physcion |
| PG | physcion-8-O-β-d-glucoside |
| LC-MS/MS | liquid chromatography-tandem mass spectrometry |
| MRM | multiple reaction monitoring |
| E | emodin |
| EG | emodin-8-O-β-d-glucoside |
| C | chrysophanol |
| CG | chrysophanol-8-O-β-d-glucoside |
| P | physcion |
| PG | physcion-8-O-β-d-glucoside |