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A comparison of the use of different volumes of the menstruum (n = 3).
| Different volumes of the menstruum | Cryptotanshinone (%) | Tanshinone I (%) | Tanshinone IIA (%) |
|---|---|---|---|
| M5 | 0.1506 | 0.1412 | 0.1871 |
| M6 | 0.1483 | 0.1384 | 0.1832 |
| RSD (%) | 1.09 | 1.42 | 1.49 |
M5: 2 g of the S. miltiorrhiza Bunge powder was extracted with 50 mL of refluxing acetone for 2 h, equal to 25 times the acetone. M6: 2 g of the powder was extracted with 8 times the amount of refluxing acetone (16 mL) for 2 h.
