Ion-selective measuring electrode device

Details Ion-selective measuring electrode device Ion-selective measuring electrode device

1986-10-01

1987-08-11

Niebling, John F.

Chemistry: electrical and wave energy

Processes and products

204419, B01D 5440, G01N 2746

Patent

active

046860126

ABSTRACT:
An ion-sensitive measuring electrode device with an ion-sensitive element based on ion-conducting crystalline ceramic material is provided. The electrode device shows a selectivity to the Na.sup.+ ion versus the H.sup.+ ion corresponding to the selectivity of the known sodium-sensitive glass-based solid membrane electrodes.
Ion-sensitive measuring electrode devices showing good selectivity properties are provided on the basis of ion-conducting crystalline material, the crystal structure of which comprises a three-dimensionally extending interstitial space containing positions for the ion, especially material in which the interstitial space has bottlenecks which just permits passage of the ion.
A method for preparing polycrystalline ceramic material based on oxides of zirconium, phosphor and silicon is also provided.

REFERENCES:
patent: 3143488 (1964-08-01), Arthur
patent: 4021325 (1977-05-01), Pungor
patent: 4083764 (1978-04-01), Van de Leest
patent: 4111777 (1978-09-01), Dobson

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