Fast Determination of Minoxidil by Photometric Flow Titration

    September 2005 in “ Eclética Química ”
    R. A. de Sousa, Felipe S. Semaan, José Augusto Fragale Baio, Éder Tadeu Gomes Cavalheiro
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    TLDR Quick, accurate minoxidil measurement in hair loss products using photometric flow titration.
    This paper describes a photometric flow titration method for quickly and accurately determining the concentration of minoxidil in commercial hair loss products. The method involves a redox reaction between KMnO and minoxidil and was found to be faster and more efficient than chromatographic procedures. The study used Regaine and Neoxidil products, both of which contained 2% minoxidil, and recoveries from 97.6 to 102.8% were observed depending on the sample. The proposed method is a low-cost and easy alternative for determining minoxidil in commercial samples.
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