Table 2.
Repeatability and intermediate precision of the HPLC method for the determination of hederacoside C in Ivy-Thyme cough syrup.
| Retention time mean (min ) ± SD n = 6 | Concentration mean (mg/mL) n = 6 | CV (%) (repeatability) | CV (%) (intermediate precision) |
|---|---|---|---|
| 26.0 ± 0.1 | 0.1 | 1.83 | 1.81 |
n: Number of determinations (number of sample solutions (at 0.1 mg/mL) prepared and injected).
SD: Standard deviation.
CV: Coefficient of variation (RSD).