Nominal conc. (ng/mL) | Intra-assay a | Inter-assay b | ||
---|---|---|---|---|
Measured conc. (ng/mL) | Recovery (%) * | Measured conc. (ng/mL) | Recovery (%) * | |
5 | 4.935 | 99.70 | 5.230 | 104.60 |
10 | 9.793 | 97.93 | 10.080 | 100.80 |
20 | 20.66 | 103.30 | 19.810 | 99.05 |
30 | 30.399 | 101.33 | 30.621 | 102.07 |
40 | 41.103 | 102.76 | 40.380 | 100.95 |
50 | 51.823 | 103.65 | 50.610 | 101.22 |
75 | 73.96 | 98.61 | 75.578 | 100.77 |
100 | 99.494 | 99.49 | 97.85 | 97.85 |
Mean ± S.D. | 100.85 ± 2.07 | 100.91 ±1.87 |