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).