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Copper(II)-selective electrodes based on macrocyclic polythiaethers
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1988
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Conducting PolymerChemical EngineeringEngineeringOrganic ElectrochemistryBest ElectrodeSolvent MediatorPvc Membrane ElectrodesElectroanalytical SensorChemistryElectrochemical ProcessMacrocyclic PolythiaethersElectrode Reaction MechanismElectrochemistryElectrochemical Surface Science
PVC membrane electrodes that are selective and sensitive to copper(II) have been developed. The best electrode, based on 13,14-benzo-1,5-tetrathiacyclopentadecane and 2-nitrophenyl octyl ether solvent mediator with a potassium tetrakis(p-chlorophenyl)borate anion excluder, exhibits a linear response in the range 10–1–10–6M over the pH range 2.9–6.7 and has a Nernstian slope of 28–29 mV per decade at 25 °C. The response time is 10 s.