Table 5. Long-Term Stability of HHC in Plasma at −30 ± 10 °C for 20 days (Mean ± SD, n = 3).
analyte (nominal conc., ng/mL) | observed conc. (ng/mL) | accuracy (%) | precision (CV%) |
---|---|---|---|
fresh | |||
LQC (15.00) | 12.85 ± 0.31 | 86.66 | 2.38 |
HQC (375.00) | 346.27 ± 17.85 | 92.34 | 5.15 |
long-term stability for 20 days | |||
LQC (15.00) | 13.54 ± 1.03 | 90.27 | 7.61 |
HQC (375.00) | 355.53 ± 34.51 | 94.81 | 9.71 |