Table 1.
Inductively coupled plasma mass spectrometry (ICP-MS) instrument operating parameters.
| Instrument Parameters | Settings | |
|---|---|---|
| Gas Flow Parameters (L/min) | Plasma Flow | 16.0 |
| Auxiliary Flow | 1.65 | |
| Sheath Gas | 0.22 | |
| Nebulizer Flow | 1.00 | |
| Torch Alignment (mm) | Sampling Depth | 6.5 |
| RF Setting | RF Power (kW) | 1.40 |
| Sample Introduction | Pump Rate (rpm) | 5 |
| Stabilization Delay (s) | 20 | |
| Quadrupole Scan | Scan Mode | Peak Hopping |
| Dwell Time (ms) | 10 | |
| Acquisition | Points/Peak | 1 |
| Scans/Replicated | 20 | |
| Replicates/Sample | 3 | |
| Ion Optics (volts) | First Extraction Lens | 0 |
| Second Extraction Lens | -40 | |
| Third Extraction Lens | -215 | |
| Corner Lens | -170 | |
| Mirror Lens Left | 40 | |
| Mirror Lens Right | 30 | |
| Mirror Lens Bottom | 30 | |
| Entrance Lens | 4 | |
| Fringe Bias | -2.7 | |
| Entrance Plate | -35 | |
| Pole Bias | -1.0 |