| System | NANOSPACE SI-2, OSAKA SODA, JAPAN |
| Column | Scherzo SS-C18 (3.0 ×150 mm, 3 μm), IMTAKT, JAPAN |
| Mobile phase | A : 0.1% Phosphoric acid B : 10mM NH4H2PO4 in DW / ACN (50:50) |
| Flow rate | 0.4 mL/min |
| Temperature | 35°C |
| Detection | PDA (210 nm) |
| Inj. vol. | 2 µL (dissolved in 30% MeOH) |