Table 1 Optimised conditions for LA-SP-ICP-MS and quantitative analysis.
LA parameters | LA-SP-ICP-MS values | Quantitative analysis values | ICP-MS parameters | LA-SP-ICP-MS values | Quantitative analysis values |
|---|---|---|---|---|---|
Laser wavelength (nm) | 213 | 213 | RF power (W) | 1400 | 1400 |
Laser energy (%) | 5 | 10 | Sampling depth | 150 | 150 |
Laser frequency (Hz) | 1 | 20 | Signal acquisition mode | Time-resolved analysis | Time-resolved analysis |
Ablation spot size (μm) | 200 | 100 | Dwell time (ms) | 1 | 10 |
Carrying gas (He) (l/min) | 0.7 | 0.7 | Carrying gas (Ar) (l/min) | 0.7 | 0.7 |
Scan rate (μm/s) | 69 | 20 | Isotopes | 197Au | 197Au |
