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Table 3 Results of recovery studies with pure drug pregabalin by standard addition method

From: A novel method for spectrophotometric determination of pregabalin in pure form and in capsules

Initial Conc. (mg/mL) Volume (mL) Amount added (μg) Amount recovered (μg) Recovery (%) ± SDa RSD (%)
0.2 5.0 100.0 98.7 98.70 ± 0.890 0.91
0.4 5.0 100.0 96.5 96.50 ± 0.923 0.95
0.6 5.0 100.0 99.7 99.70 ± 0.624 0.63
0.8 5.0 100.0 100.3 100.3 ± 1.600 1.57
1.0 5.0 100.0 98.1 98.10 ± 1.718 1.72
  1. a Average of determinations carried out in triplicate.