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Analysis of drugs by AAS via formation of ion pairs

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Abstract

A new procedure for determining nitrogenated bases by forming ion pairs with Fe(SCN)63− is studied. The method consists of extracting the ion pair formed by a nitrogenated base and the inorganic complex Fe(SCN)63− into an organic phase, and measuring the iron in the organic phase by AAS at 248.3 nm. The optimal experimental conditions for determining amylocaine, avacan, bromhexine, diphenhydramine and papaverine are studied. The organic phase used is 1,2-dichloroethane. The standard deviation of the method varies between 10−1 and 10−2. The interferences produced by various substances are studied.

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Nerín, C., Garnica, A. & Cacho, J. Analysis of drugs by AAS via formation of ion pairs. Mikrochim Acta 90, 117–126 (1986). https://doi.org/10.1007/BF01196826

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  • DOI: https://doi.org/10.1007/BF01196826

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