Table 1.
Low Concentration (32 mg/L) | High Concentration (160 mg/L) | |
---|---|---|
Intraday precision (RSD) (%) | 3.3 | 3.8 |
Interday precision (RSD) (%) | 4.0 | 4.0 |
Accuracy (Bias) (%) | −5.3 | 8.2 |
Stability | ||
20 °C (h) | 2 | |
2–8 °C (h) | 8 | |
−20 °C (h) | 28 | |
−80 °C (days) | 31 |
h = hours, RSD= relative standard deviation.