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Asian Journal of Scientific Research
Year: 2009  |  Volume: 2  |  Issue: 3  |  Page No.: 135 - 145

Application of DDQ and p-Chloranilic Acid for the Spectrophotometric Estimation of Milrinone in Pharmaceutical Formulations

M.R. Siddiqui, A. Tariq, A. Ahmad, M. Chaudhary, S.M. Shrivastava and R.K. Singh    

Abstract: Two simple, rapid and sensitive spectrophotometric methods have been proposed for the determination of milrinone in pharmaceutical formulations. The first method is based on the charge transfer complexation reaction of milrinone with 2, 3-Dichloro-5, 6-Dicyanobenzoquinone, DDQ while the second method is based on charge transfer reaction of milrinone with p-Chloranilic Acid (pCA). Under the optimized experimental conditions Beer's law is obeyed in the concentration range of 2-40 μg mL-1 for method A and 5-100, 2-40 μg mL-1 for method B. The recovery ranged from 100.06 -100.11 for method A and from 99.34 -99.97 for method B. The coefficient of correlation was found to be 0.9998 for A and 0.9999 for B and the detection limit for method A and method B was found to be 0.765 and 3.35, respectively. Both the methods have been applied to determination of milrinone in the pharmaceutical formulation. Results of the analysis are validated statistically.

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