Compound Liquorice Tablets on Ultisil XB-C18
Reference substance of Ammonium glycyrrhizinate
| Column | Welch Ultisil XB-C18 4.6×250mm，5μm (P/N: 00201-31043) |
| Mobile Phase | 0.025mol/L potassium dihydrogen phosphate solution-0.0025mol/L sodium heptanesulfonate solution-acetonitrile=33:33:34; |
| Detector | 250 nm |
| Temperature | 30℃ |
| Flow Rate | 1.0ml/min |
| Injection Volume | 20ul |