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Method Accuracy and Precision Verification Results Shown by Ion Transition, Performed Over a 10-Week Period Using Two QC Materials (N = 20)
| Ion transition | QC-1 |
QC-2 |
||||||
|---|---|---|---|---|---|---|---|---|
| Actual concentration (μg/L) | Average calculated conc. (μg/L) | Accuracy (%) | RSD (%) | Actual concentration (μg/L) | Average calculated conc. (μg/L) | Accuracy (%) | RSD (%) | |
| SRM1 | 62.9 | 64.2 | 2.1 | 5.8 | 631 | 635 | 0.7 | 4.8 |
| SRM2 | 62.5 | − 0.6 | 4.6 | 634 | 0.5 | 3.9 | ||
| SUM | 63.7 | 1.3 | 4.4 | 634 | 0.6 | 4.3 | ||
