Research Article

Simultaneous Estimation of Paracetamol, Ambroxol Hydrochloride, Levocetirizine Dihydrochloride, and Phenylephrine Hydrochloride in Combined Tablet Formulation by First-Order Derivative Spectrophotometry

Figure 3

Overlain first-order derivative UV spectra of PARA, AMB, LEVO, and PHEN (10 μg/mL concentration of each drug solution).
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