Simple Atomic Absorption Spectroscopic and Spectrophotometric Methods for Determination of Pioglitazone Hydrochloride and Carvedilol in Pharmaceutical Dosage Forms
Figure 16
Absorption spectra of (a) the reaction of 60 gmL−1 PGZ-HCl with 0.5 mL orange G (0.4%, w/v) against methylene chloride, (b) 0.5 mL orange G (0.4%, w/v) against methylene chloride, and (c) 60 gmL−1 PGZ-HCl against methylene chloride.
