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| Positive ion spray voltage | 4,000 V |
| Sheath gas (Arb) | 50 |
| Auxiliary gas (Arb) | 5 |
| Sweep gas | 1 |
| Ion transfer tube temperature | 200°C |
| Vaporizer temperature | 400°C |
| Mobile phase | A: 0.1% formic acid in water |
| B: Acetonitrile | |
| Column | C 18 (3.0 μm 120Å, 2.1 × 50 mm) |
| Flow rate | 0.4 mL/min |
