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System suitability parameters.
| PARAMETER | PARACETAMOL | IBUPROFEN | USP LIMIT |
|---|---|---|---|
| %RSD of tRa | 0.225 | 0.114 | ≤2% |
| %RSD of areaa | 0.223 | 0.198 | ≤2% |
| Tailing factora | 1.3 | 1.1 | ≤2.0 |
| Resolutionb | – | 6.5 | ≥2.0% |
| Theoretical plate | 2100 | 3743 | ≥2000 |
| Peak purity index | 1.00 | 1.00 | ≥0.98 |
Notes:
Mean of six runs.
Resolution with respect to former peak.
