Cefradine on Ultisil Polar RP
Blank-impurity reference solvent（Detector：220nm）
| Rt | Area | Area% | Height | Width | Plates | Resolution | Tailing Factor |
| Column | Welch Ultisil Polar RP 4.6×250，5μm (P/N: 00215-31043) |
| Mobile Phase | Methanol: Water: 3.86% sodium acetate solution: 4% acetic acid 400: 1564:30:6 |
| Detector | 254nm；220nm |
| Temperature | Room Temperature |
| Flow Rate | 0.9ml/min |
| Injection Volume | 20ul |