Polycrystalline ion selective electrode

Details Polycrystalline ion selective electrode Polycrystalline ion selective electrode

1993-02-18

1994-09-06

Niebling, John

Chemistry: electrical and wave energy

Apparatus

Electrolytic

204422, 204416, 204435, G01N 2721

Patent

active

053445473

ABSTRACT:
An improved "all solid state" ion selective electrode device comprising a unique sensing element of triple-layer membrane construction. The first sensor layer of the sensing membrane comprising a solid electrolyte composition, the middle layer comprising a mixture of the aforesaid electrolyte composition and finely divided electronic conducting material, and the third contacting layer composed principally of the aforesaid electronic conducting material. The middle layer having a gradient of component concentration such that a substantial amount of the electrolyte composition is presented in the middle layer closest the first sensor layer and a substantial amount of the electronic conducting material is presented in the middle layer closest the third contacting layer.

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Yu. G. Vlasov, Yu. E Ermolenko, and O. A. Ishakova "Lead Containing Electrodes on the Basis of Lead and Silver Sulfides" UDC 543.257.1:546.815, at pp. 1522-1526, 1978. (Rough Draft translation provided). No month presently available.
J. Tacussel and J. J. Fomborn, "New Solid State Ion-Selective Electrodes for PO.sub.4.sup.3- and Cl.sup.- Activity Measurements", Conference on Ion-Selective Electrodes--Budapest, 1977, at 567-562. No month presently available.
Y. G. Vlasov, "New Solid-State Ion-Selective Electrodes--Sensors for Chemical Analysis of Solutions" Fresenius Z Anal Chem (1989) 335:92-99.
J. Siemroth, I Henning and R. Claus, "All-SolidIon-Selective Electrodes Prepared from Fused Sensing Materials", 2nd Symposium on Ion-Selective Electrodes--MatraFured, 1976, at 185-189.
Yr. G. Vlasov and S. B. Kocheregin, "Structure and Electrical Properties of the Membranes of the Ion-Selective Electrodes Based on AgX--Ag.sub.2 S/X =Cl, Br, I/", Conference on Ion-Selective Electrodes--Budapest, 1977, at 597-601.

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