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Naji, M. |
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Motta, Antonella |
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Aletan, Dirar |
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Mohamed, Tarek |
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Ertürk, Emre |
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Taccardi, Nicola |
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Kononenko, Denys |
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Petrov, R. H. | Madrid |
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Alshaaer, Mazen | Brussels |
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Bih, L. |
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Casati, R. |
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Muller, Hermance |
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Kočí, Jan | Prague |
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Šuljagić, Marija |
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Kalteremidou, Kalliopi-Artemi | Brussels |
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Azam, Siraj |
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Ospanova, Alyiya |
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Blanpain, Bart |
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Ali, M. A. |
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Popa, V. |
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Rančić, M. |
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Ollier, Nadège |
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Azevedo, Nuno Monteiro |
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Landes, Michael |
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Rignanese, Gian-Marco |
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Mamińska, Renata
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article
Ammonium- and nitrate-selective all-solid-state microelectrodes based on AgI-Ag2O-V2O5 glass transducer
Abstract
AgI-Ag2O-V2O5 glasses of mixed ionic and electronic conductivity were used as planar transducers for construction of all-solid-state NH4+ and NO3- selective microelectrodes. The sensors were prepared by direct deposition of the PVC-based membrane of an appropriate composition onto the transducer surface. Working parameters of the obtained internal solution-free miniaturized ion-selective electrodes were tested under flow conditions. The designed electrodes exhibited good long-term stability and high selectivity towards primary ions, comparable to the selectivity of conventional ion-selective electrodes based on PVC membranes containing nonactine and quaternary ammonium salts. The results have proven that AgI-Ag2,O-V205; glass material can be used for preparation of cheap, simple in structure all-solid-state ion-sensitive rnicroelectrodes.