Table 3.
Typical MC-ICP-MS operating parameters for Li isotopic measurements.
| Parameter | Value |
|---|---|
| RF forward power | 1015 W (optimized daily) |
| Cooling gas | 16 L/min |
| Auxiliary gas | 1.03 L/min (optimized daily) |
| Sample gas | 1.019 L/min (optimized daily) |
| Extraction voltage | −2000 V |
| Focus voltage | −614 V |
| Accelerating voltage | 10 kV |
| Detection system | Faraday cups |
| Nebulizer | ESI PFA-50 (~50 μL min−1) |
| X-position | −2.850 mm (optimized daily) |
| Y-position | −2.590 mm (optimized daily) |
| Z-position | 2.580 mm (optimized daily) |
| Peri-pump | 2 rpm |
| Instrument resolution | Low resolution |
| Integration time | 4.194 s |
| Idle time | 3 s |