Optimizing the spectrofluorimetric determination of cefdinir through a Taguchi experimental design approach |
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| Authors: | Noura Hemdan Abou‐Taleb Dalia Rashad El‐Wasseef Dina Tawfik El‐Sherbiny Saadia Mohamed El‐Ashry |
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| Affiliation: | Department of Medicinal Chemistry, Faculty of Pharmacy, Mansoura University, Mansoura City, Egypt |
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| Abstract: | The aim of this work is to optimize a spectrofluorimetric method for the determination of cefdinir (CFN) using the Taguchi method. The proposed method is based on the oxidative coupling reaction of CFN and cerium(IV) sulfate. The quenching effect of CFN on the fluorescence of the produced cerous ions is measured at an emission wavelength (λem) of 358 nm after excitation (λex) at 301 nm. The Taguchi orthogonal array L9 (34) was designed to determine the optimum reaction conditions. The results were analyzed using the signal‐to‐noise (S/N) ratio and analysis of variance (ANOVA). The optimal experimental conditions obtained from this study were 1 mL of 0.2% MBTH, 0.4 mL of 0.25% Ce(IV), a reaction time of 10 min and methanol as the diluting solvent. The calibration plot displayed a good linear relationship over a range of 0.5–10.0 µg/mL. The proposed method was successfully applied to the determination of CFN in bulk powder and pharmaceutical dosage forms. The results are in good agreement with those obtained using the comparison method. Finally, the Taguchi method provided a systematic and efficient methodology for this optimization, with considerably less effort than would be required for other optimizations techniques. Copyright © 2015 John Wiley & Sons, Ltd. |
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| Keywords: | cefdinir Taguchi orthogonal array signal‐to‐noise ratio MBTH spectrofluorimetry |
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