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