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Stability data for valproic acid in plasma samples obtained by the proposed method
| Room temperature stability | Freeze–thaw stability | |||||
|---|---|---|---|---|---|---|
| Nominal concentration (µg/ml) (n=3) | Found concentration (µg/ml) ± SD | Accuracy (RE %) | Relative recovery (%) ± SD | Found concentration (µg/ml) ± SD | Accuracy (RE %) | Relative recovery (%) ± SD |
| 8 | 8.8±0.04 | 10 | 110±0.09 | 8.6±0.05 | 7.5 | 107.5± 0.12 |
| 40 | 38.8±0.06 | -3 | 97±0.05 | 38.0± 0.11 | -5 | 95± 0.09 |
| 120 | 113.8±0.05 | -5.2 | 94.8±0.07 | 116.4± 0.06 | -3 | 97± 0.08 |
