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Potentiometric determination of penicillins with ion-selective electrodes |
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| Authors: | Yao S Z Shiao J Nie L H |
| Institution: | New Material Research Institute, Department of Chemical Engineering, Hunan University, Changsha 410012, People's Republic of China |
| Abstract: | Quaternary ammonium, phosphonium and arsonium membrane electrodes sensitive to benzylpenicillin, ampicillin and oxacillin have been investigated. The order of merit of electrode performance is cetyltrioctylammonium> cetyltrioctylphosphonium> cetyltrioctylarsonium. The electrodes are suggested for use in rapid determination of penicillin drugs by direct potentiometry. |
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