Abstract
This work represents different spectrophotometric techniques for concurrent quantification of Indacaterol (IND) and Mometasone furoate (MOM); co-formulated inhalation capsules to control asthma symptoms. Direct spectrophotometric (D0) approach was applied for IND assay. While, absorption factor (AF), ratio difference (RD), mean centering of the ratio spectra (MC), and continuous wavelet transform (CW) techniques were utilized for MOM quantification. The applied methods' validation was accomplished relative to the ICH guidelines. Within the linearity range of (4 - 20 μg/mL), these approaches provided accurate and precise assessment of IND and MOM in laboratory-synthetic mixtures and pharmaceutical formulation with determination coefficients higher than 0.9997. Moreover, the proposed methods demonstrated good detection and quantification levels. The respective LOD and LOQ for IND were (0.33 μg/mL) and (1.01 μg/mL). While, the LOD and LOQ for MOM were ranging from (0.16 - 0.30 μg/mL) and (0.47 - 0.91 μg/mL), respectively. Statistical comparison revealed no significant differences between the findings derived from the proposed methods and the reported one. The applied methods' environmental effect was cheeked using Analytical Greenness Calculator (AGREE), Blue Applicability Grade Index (BAGI), and Red-Green-Blue 12 (RGB12). All the utilized metrics showed reliable scores, approving that the proposed methods were adhered to the sustainability principles.
Published Version
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