Conc. (ng/spot) | Intraday precision (n = 6) | Intermediate precision (n = 6) | ||
| Mean. ± SD | %RSD | Mean. ± SD | %RSD |
60 | 367.72 ± 2.87 | 0.78 | 375.89 ± 4.77 | 1.27 |
80 | 480.19 ± 2.21 | 0.46 | 485.63 ± 4.91 | 1.01 |
100 | 593.90 ± 5.81 | 0.97 | 590.41 ± 1.464 | 0.25 |