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Quality evaluation of BTR
| Major constituents | Method of determination | Quality specifications |
|---|---|---|
| Catalpol | HPLC | >50 mg per 10 g BTR |
| Paeoniflorin | HPLC | >0.2 g per 10 g BTR |
| Morroniside | HPLC | >50 mg per 10 g BTR |
| Testudinis Carapax et Plastrum | TLC | Arginine contained |
HPLC high performance liquid chromatogram, TLC thin-layer chromatography
