Research Article

Simple Atomic Absorption Spectroscopic and Spectrophotometric Methods for Determination of Pioglitazone Hydrochloride and Carvedilol in Pharmaceutical Dosage Forms

Figure 7

Effect of volume of 2% nitric acid on the ion pair formed with (i) 20 μgmL−1 PGZ-HCl and (ii) 40 μgmL−1 CRV.
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