Chemiluminescence determination of naltrexone based on potassium permanganate oxidation

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A. Campiglio


Abstract

A rapid method by chemiluminescence is described for the determination of naltrexone. The method is based on the chemiluminescence reaction with potassium permanganate in sulfuric acid medium. The optimum conditions for the chemiluminescence emission were investigated. With the integrated chemiluminescence intensity for 10 s after KMnO4 injection as a quantitative parameter, naltrexone can be determined over the concentration range 50–1000 ng ml1 with a detection limit of 2.5 ng ml1 and with a RSD (n = 10) of 0.9% and 0.5% at levels of 1000 and 100 ng ml1, respectively. The method was applied to the determination of naltrexone in pharmaceutical preparations.


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