Reference solution
| Column | Xtimate® C18（4.6×250mm，5μm) |
| Mobile Phase | Phosphate buffer salt: take 1.74g anhydrous dipotassium hydrogen phosphate, add 1000ml water to dissolve, and Adjust the pH value of phosphoric acid to 7.0 for ultrasonic degassing. Phosphate buffer / acetonitrile = 65 / 35 |
| Detection | 289nm |
| Temperature | 30℃ |
| Flow Rate | 1.0ml/min |
| Injection Volume | 20ul |
| Note | / |
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