New Spectrophotometric and Conductometric Methods for Macrolide Antibiotics Determination in Pure and Pharmaceutical Dosage Forms Using Rose Bengal

Figure 2

Effect of volume of 0.3% w/v Cu(II) chloride on the ternary complex formed with 40 𝜇g/mL erythromycin thiocyanate and 1.5 mL rose bengal 0.3% w/v; 25 𝜇g/mL clarithromycin and 0.5 mL rose bengal 0.3% w/v; 13 𝜇g/mL azithromycin dihydrate and 0.2 mL rose bengal 0.3% w/v.