Assessment of the accuracy of the validated method at five concentration levels within the linear range.
| Taken conc. (ng mL−1) | Found conc. (ng mL−1) | Recoverya ± SD | % Error |
|---|---|---|---|
| 400 | 393.39 | 98.35 ± 1.39 | −1.65 |
| 1200 | 1214.35 | 101.20 ± 1.74 | 1.20 |
| 1800 | 1789.61 | 99.42 ± 0.35 | −0.58 |
| 2200 | 2214.07 | 100.64 ± 0.67 | 0.64 |
| 3200 | 3164.29 | 98.88 ± 0.93 | −1.12 |
Mean of three determinations and SD is the standard deviation.