Ion-selective and Potentiometric methods

A neutral, carrier-based calcium ion-selective microelectrode has been used in the determination of tetraphenylphosphonium ions (used as membrane potential probes) during respiratory-state transitions in rat mitochondria.  

The application of poly(cyclophosphazene) for the potentiometric detection of tributyl phosphate vapour is reported, and the potentiometric determination of some phosphor- amidothioates given. Phosphine and phosphorus oxide concentration measurements with silver(l) p-alumina have also been reported.  

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