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Intra- and Inter-Day Accuracy and Precision of HPLC-UV Method
| Medium | Nominal Concentration (μg/mL) | Intra-Day (n=3) | Inter-Day (n=3) | ||
|---|---|---|---|---|---|
| Accuracy (RE, %) | Precision (CV, %) | Accuracy (RE, %) | Precision (CV, %) | ||
| Solution | 5 | 1.20 | 2.27 | 0.38 | 2.13 |
| 20 | 1.07 | 2.70 | 0.53 | 4.50 | |
| 80 | 0.79 | 1.53 | 2.42 | 3.41 | |
Note: Values ≤ 15% are considered acceptable.
Abbreviations: RE, Relative error; CV, Co-efficient of Variation.
