New Spectrophotometric and Conductometric Methods for Macrolide Antibiotics Determination in Pure and Pharmaceutical Dosage Forms Using Rose Bengal
Figure 5
Molar ratio method plot for 2.5 × 10−4 M erythromycin thiocyanate with 2.5 × 10−4 M rose bengal in presence of excess Cu(II) chloride (0.2 mL 0.3%); 2.5 × 10−4 M clarithromycin with 2.5 × 10−4 M rose bengal in presence of excess Cu(II) chloride (1.5 mL 0.3%); 1.25 × 10−4 M azithromycin dihydrate with 1.25 × 10−4 M rose bengal in presence of excess Cu(II) chloride (0.5 mL 0.3%). = rose bengal and = Drug.
