Table 1 Instrumental setting and operational parameters
| RF forward power | 1200 W |
|---|---|
| RF reflected power | < 2 W |
| Cooling gas | 15 L/min |
| Auxiliary gas | 0.75 - 0.80 L/min |
| Sample gas | 0.985 - 0.990 L/min |
| Extraction | −2 kV |
| Focus | −0.654 kV |
| Acceleration voltage | 10 kV |
| Interface cones | Nickel |
| Spray chamber | Quartz dual cyclonic |
| Nebulizer | ESI PFA MicroFlow |
| Sample uptake rate | 100 μL/min |
| Instrumental resolution | ca. 400 |
| Mass analyzer pressure | 2.9 × 10-9 mbar |