Table 1 Within-assay precision (five measurements in the same run for each control) and between-assay precision (five measurements for each control, repeated for three consecutive days).
a Control solution | Within-assay | Between-assay | ||
|---|---|---|---|---|
Mean | CV % | Mean | CV % | |
5 μg mL-1 | 5.27 | 3.51 | 5.87 | 4.56 |
25 μg mL-1 | 24.56 | 2.87 | 25.30 | 5.80 |
75 μg mL-1 | 75.92 | 3.15 | 74.17 | 6.58 |