Fig. 4
Effect of the pH on the absorbance of the ion-pair complexes of Colistin (3 µg mL− 1) and Polymyxin B (5 µg mL− 1)
Fig. 4 | BMC Chemistry
Effect of the pH on the absorbance of the ion-pair complexes of Colistin (3 µg mL− 1) and Polymyxin B (5 µg mL− 1)