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Flow injection potentiometric sensor for determination of phenylpropanolamine hydrochloride |
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| Authors: | Y.M. Issa M.M. Khalil S.I.M. Zayed Ahmed Hussein |
| Affiliation: | 1. Faculty of Science, Cairo University, Giza, Egypt;2. Faculty of Science, Beni Suef University, Beni Suef, Egypt;3. Faculty of Industrial Education, Beni Suef University, Beni Suef, Egypt |
| Abstract: | A new polymeric membrane electrode has been constructed for the determination of phenylpropanolamine hydrochloride. The electrode was prepared by solubilizing the phenylpropanolamine-phosphomolybdate ion associate into a polyvinyl chloride matrix plasticized by dibutylphthalate as a solvent mediator. The electrode showed near-Nernstian response over the concentration range of 1 × 10?5–1 × 10?2 M with low detection limit of 6.3 × 10?6 M. The electrode displays a good selectivity for phenylpropanolamine with respect to a number of common inorganic and organic species. The electrode was successfully applied to the potentiometric determination of phenylpropanolamine ion in its pure state and its pharmaceutical preparation in batch and flow injection conditions. |
| Keywords: | Phenylpropanolamine hydrochloride Ion selective electrodes Flow injection analysis Potentiometry |
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