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J Chromatogr A. 2008 Aug 8;1201(2):191-5. doi: 10.1016/j.chroma.2008.05.008. Epub 2008 May 10.

Determination of pipecuronium bromide and its impurities in pharmaceutical preparation by high-performance liquid chromatography with coulometric electrode array detection.

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Department of Pharmaceutical Chemistry, National Medicines Institute, 30/34 Chelmska Street, 00-725 Warsaw, Poland.


A sensitive and selective HPLC method with coulometric electrode array detection for the determination of pipecuronium bromide and its four impurities has been developed. The coulometric electrode array detection at increasing potentials from +300 to +900mV of the porous graphite electrode versus the palladium reference electrode was used. The limit of detection and quantitation for pipecuronium bromide was 8 and 25ngml(-1), respectively. This elaborate method for the simultaneous analysis of pipecuronium bromide and its impurities proved to be fast, precise, accurate, sensitive, and could be applied to analysis in substances and in pharmaceutical preparations.

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