Fingerprint Spectrophotometric Methods for the Determination of Co-Formulated Otic Solution of Ciprofloxacin and Fluocinolone Acetonide in Their Challengeable Ratio

Figure 5

(a) Zero-order absorption spectrum of (CIP)′ (12.0 μg/mL) as a divisor; (b) zero-order absorption spectrum of a mixture of (CIP) and FLU (5.0 μg/ml each); (c) ratio spectrum of this mixture using of (CIP)′ (12.0 μg/mL) as a divisor showing in the plateau region (300.0–330.0 nm).