Simultaneous Estimation of Ibuprofen and Phenylephrine Hydrochloride in Bulk and Combined Dosage Form by First Derivative UV Spectrophotometry Method

<table>Overlain D<sup>1</sup> spectrum of IBU (12–72 ppm) and PHE (1.5–22 ppm) in 0.1 N NaOH.</table>

Journal of Spectroscopy

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Figure 2

Figure 2: Simultaneous Estimation of Ibuprofen and Phenylephrine Hydrochloride in Bulk and Combined Dosage Form by First Derivative UV Spectrophotometry Method 

Figure 2 | Simultaneous Estimation of Ibuprofen and Phenylephrine Hydrochloride in Bulk and Combined Dosage Form by First Derivative UV Spectrophotometry Method 