Research Article
Simultaneous Estimation of Ibuprofen and Phenylephrine Hydrochloride in Bulk and Combined Dosage Form by First Derivative UV Spectrophotometry Method
Table 2
Results of recovery studies (tablet).
| | % Level | Amt. of IBU taken in μg/mL | Amt. of PHE taken in μg/mL | Amt. of Std IBU added in μg/mL | Amt. of Std PHE added in μg/mL | % Recovery
(IBU) | % Recovery
(PHE) | % RSD IBU | % RSD PHE |
| | 80% | 30 | 1.5 | 24 | 1.2 | 99.52% | 98.44% | 1.46% | 1.81% | | 100% | 30 | 1.5 | 30 | 1.5 | 99.71% | 99.12% | 0.94% | 1.12% | | 120% | 30 | 1.5 | 36 | 1.8 | 99.88% | 98.06% | 1.24% | 1.55% |
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