S. no. | Spiked concentration (n = 6) (ng/ml) | Mean measured concentration (ng/ml ± SD) | Precision (%)* | Accuracy (%)* | |||
---|---|---|---|---|---|---|---|
Intra-day | Inter-day | Intra-day | Inter-day | Intra-day | Inter-day | ||
1 | 25 | 25.01 ± 0.13 | 24.98 ± 0.03 | 1.11 | 1.19 | 0.79 | 1.08 |
2 | 250 | 250.14 ± 2.31 | 249.72 ± 1.84 | 1.23 | 1.38 | 0.93 | 1.23 |
3 | 1250 | 1253.71 ± 3.16 | 1249.38 ± 2.71 | 1.61 | 1.42 | 0.61 | 1.46 |