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An Experimental Design Approach for Optimization of Spectrophotometric Estimation of Mirabegron in Bulk and Pharmaceutical Formulations


Three simple, low-cost, sensitive and diversely applicable UV-Vis spectrophotometric methods have been developed for the estimation of drug Mirabegron. Method A is based on the reaction of Mirabegron with ninhydrin in the presence of sodium molybdate at pH 5.5. Method B is based on the reaction of the drug with 1,2-napthaquinone-4-sulphonate and cetyltrimethyl ammonium bromide in an alkaline medium. Method C is based on a redox reaction of the drug with Folin–Ciocalteu reagent in sodium carbonate medium. Beer’s law was obeyed in the concentration ranges of 2.5–22.5, 5–35, and 5–70 μg/mL for methods A, B, and C. The proposed methods can be applied to drug formulation and recommended for the routine analysis in quality control laboratories.

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Correspondence to Roopa Kothathi Papanna.

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Roopa Kothathi Papanna, Gowda, J.B. & Nagaraja, P. An Experimental Design Approach for Optimization of Spectrophotometric Estimation of Mirabegron in Bulk and Pharmaceutical Formulations. J Anal Chem 73, 884–893 (2018).

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  • ninhydrin
  • sodium 1,2-napthaquinone-4-sulphonate
  • cetyltrimethyl ammonium bromide
  • Folin–Ciocalteu
  • Mirabegron
  • pharmaceuticals