Table 4 Accuracy and precision data for the simultaneous determination of DPZ and CUR by the proposed HPLC-DAD method
Drug | Nominal value | Within-day Precision | Between-day Precision | ||||
|---|---|---|---|---|---|---|---|
|  | µg/mL | mean ± SD | RSD (%) | Er (%) | mean ± SD | RSD (%) | Er (%) |
DPZ | 1 | 99.54 ± 0.75 | 0.75 | 0.43 | 99.30 ± 0.95 | 0.95 | 0.55 |
50 | 100.23 ± 1.82 | 1.81 | 1.05 | 99.83 ± 1.55 | 1.55 | 0.90 | |
100 | 99.73 ± 1.12 | 1.12 | 0.65 | 99.75 ± 1.54 | 1.54 | 0.89 | |
CUR | 1 | 99.68 ± 1.46 | 1.47 | 0.85 | 99.95 ± 1.26 | 1.26 | 0.73 |
50 | 99.8 ± 1.66 | 1.66 | 0.96 | 99.87 ± 1.05 | 1.05 | 0.61 | |
100 | 100.75 ± 0.76 | 0.76 | 0.44 | 100.18 ± 1.29 | 1.30 | 0.75 | |