Reference solution
| Column | Ultisil®XB-C18（4.6×250mm，5μm) |
| Mobile Phase | 0.1mol/L glacial acetic acid: take 5.72mL of glacial acetic acid, add it to 500mL of Wahaha water, shake well, add water to the mark, and ultrasonically degas. 0.1mol/L glacial acetic acid/acetonitrile=50/50 |
| Detection | 228nm |
| Temperature | 30℃ |
| Flow rate | 1.0ml/min |
| Injection Volume | 50ul |
| Note | \ |
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