Polarographic PPB oxygen gas sensor

Details Polarographic PPB oxygen gas sensor Polarographic PPB oxygen gas sensor

1994-04-25

1995-02-28

Niebling, John

Chemistry: electrical and wave energy

Processes and products

Processes of treating materials by wave energy

204409, 204432, 204258, 204265, 204266, 204277, 204278, 204412, G01N 2726

Patent

active

053933923

ABSTRACT:
A polarographic electrochemical cell for the measurement of oxygen in ppb. The cathode in the system is a non-depleting carbon polytetrafluoroethylene electrode catalytically specific for oxygen reduction. The anode is a composite nickel matrix. The reaction at the anode is an electrochemical oxidation reaction but there are no soluble byproducts that contaminate the electrode. The reaction at the anode is a simple oxidation, state-of-change of the nickel in the nickel composite matrix.

REFERENCES:
patent: 4960497 (1990-10-01), Gallagher
patent: 5256273 (1993-10-01), Gallagher et al.

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