Table II.
Nominal concentration (ng/ml) | Precision
|
|||
---|---|---|---|---|
Intra-day (n = 8)
|
Inter-day (n = 5)
|
|||
Mean ± SEM (ng/ml) | RSD (%) | Mean ± SEM (ng/ml) | RSD (%) | |
8.44 | 8.14±0.42 | 5.16 | 7.99±0.69 | 8.64 |
135.04 | 131.47±5.87 | 4.46 | 130.36±10.29 | 7.89 |
2160.64 | 2098.8±130.55 | 6.22 | 2018.2±161.66 | 8.01 |
RSD, relative standard deviation, HPLC, high-performance liquid chromatography.