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Intra- and inter-day precision and accuracy at different concentrations. (n = 6).
| Analytes | Concentration (mg/L) | Measured (mg/L) | Intra-Day | Inter-Day | ||
|---|---|---|---|---|---|---|
| RSD (%) | RE (%) | RSD (%) | RE (%) | |||
| PUE | 0.1 | 0.1 ± 0.0 | 9.9 | 13.2 | 8.0 | 5.3 |
| 1 | 0.9 ± 0.1 | 7.8 | −11.2 | 14.1 | −1.0 | |
| 10 | 10.0 ± 1.3 | 12.7 | 5.5 | 13.9 | 9.8 | |
RSD: precision; RE: accuracy.
