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Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy v.174, 2017년, pp.326 - 330   SCI SCIE
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Validated spectrofluorimetric methods for the determination of apixaban and tirofiban hydrochloride in pharmaceutical formulations

El-Bagary, Ramzia I. (Pharmaceutical Chemistry Department, Faculty of Pharmaceutical Sciences and Pharmaceutical Industries, Future University, Egypt ) ; Elkady, Ehab F. (Pharmaceutical Chemistry Department, Faculty of Pharmacy, Cairo University, Egypt ) ; Farid, Naira A. (Pharmaceutical Chemistry Department, National organization for Drug Control and Research (NODCAR), Giza, Egypt ) ; Youssef, Nadia F. (Pharmaceutical Chemistry Department, National organization for Drug Control and Research (NODCAR), Giza, Egypt ) ;
  • 초록  

    Abstract Apixaban and Tirofiban Hydrochloride are low molecular weight anticoagulants. The two drugs exhibit native fluorescence that allow the development of simple and valid spectrofluorimetric methods for the determination of Apixaban at λ ex/λ em=284/450nm and tirofiban HCl at λ ex/λ em=227/300nm in aqueous media. Different experimental parameters affecting fluorescence intensities were carefully studied and optimized. The fluorescence intensity-concentration plots were linear over the ranges of 0.2–6μgml −1 for apixaban and 0.2–5μgml −1 for tirofiban HCl. The limits of detection were 0.017 and 0.019μgml −1 and quantification limits were 0.057 and 0.066μgml −1 for apixaban and tirofiban HCl, respectively. The fluorescence quantum yield of apixaban and tirofiban were calculated with values of 0.43 and 0.49. Method validation was evaluated for linearity, specificity, accuracy, precision and robustness as per ICH guidelines. The proposed spectrofluorimetric methods were successfully applied for the determination of apixaban in Eliquis tablets and tirofiban HCl in Aggrastat intravenous infusion. Tolerance ratio was tested to study the effect of foreign interferences from dosage forms excipients. Using Student's t and F tests, revealed no statistically difference between the developed spectrofluorimetric methods and the comparison methods regarding the accuracy and precision, so can be contributed to the analysis of apixaban and tirofiban HCl in QC laboratories as an alternative method. Highlights New validated spectrofluorimetric methods for the analysis of selected anticoagulants. The developed methods are successfully applied for the analysis of selected drugs in drug substances and drug products. The methods are based on the measurements of the native fluorescence of selected drugs. The proposed methods can be used as alternative methods in quality control laboratories. Graphical abstract [DISPLAY OMISSION]


  • 주제어

    Spectrofluorimetry .   Apixaban .   Tirofiban HCl .   Method validation .   Pharmaceutical formulations.  

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