Table 6. Results for the SST Using the Improved Method Reported in Table 5.
| system suitability test (SST) | obtained value | criterion |
|---|---|---|
| Prednisolone Reference Solution at the LOQ: 0.05% of the Working Concentration (0.25 μg/mL) | ||
| S/N for the prednisolone peak | 15 | ≥10 |
| Prednisolone Reference Solution at 0.5% of the Working Concentration (2.5 μg/mL) | ||
| number of theoretical plates for the prednisolone peak | 35,226/m | ≥10,000/m |
| tailing factor for the prednisolone peak | 1.01 | 0.8–1.5 |
| RSD of the prednisolone peak area (n = 3) | 0.8% | ≤5% |
| Solution of Prednisolone FSS | ||
| Rs between the peaks of prednisolone and impurity A | 2.3 | ≥1.5 |