Electrolysis: processes – compositions used therein – and methods – Electrolytic analysis or testing – For ph
Patent
1995-03-14
1996-09-17
Bell, Bruce F.
Electrolysis: processes, compositions used therein, and methods
Electrolytic analysis or testing
For ph
205782, 2057825, 2057835, 205784, 204421, 204433, 204435, 204416, 204404, G01N 2726
Patent
active
055565344
ABSTRACT:
Electrochemical sensors and methods for their use are provided for the detection of the pH and/or oxygen concentration in an aqueous medium. The subject sensors comprise a closed-end cylinder shaped fluoride based solid-state electrolyte having an inner and outer surface. In contact with the inner surface of the electrolyte is a solid reference electrode. In a preferred embodiment, the electrolyte is described by the formula La.sub.0.95 X.sub.0.05 F.sub.2.95, wherein X is an alkaline earth metal. In addition to finding use in the detection of the pH or oxygen concentration of a medium where one these factors is known, at least two of the subject sensors may be used in conjunction, where the reference electrode differs between the two sensors, to determine the pH and oxygen concentration of a medium where both of these values are unknown.
REFERENCES:
patent: 4479867 (1984-10-01), Siebert et al.
patent: 4864462 (1989-09-01), Madou et al.
patent: 5133857 (1992-07-01), Alberti et al.
patent: 5134042 (1992-07-01), Madou et al.
patent: 5256272 (1993-10-01), Alcock et al.
Alcock et al., "New Electrochemical Sensors for Oxygen Determination," Solid State Ionics (1992), 53-56:39-43. No month available.
Nagel et al., Fast Ion Transport in Solids (W. Van Goal ed., North Holland, Amsterdam (1973), 165-170. No month available.
Alcock et al., "A Fluoride-Based Composite Electrolyte", Solid State Ionics (1990), 39:245-249. No month available.
Kuwata et al., "Response of a Solid-State Potentiometric Sensor Using LaF.sub.3 to a Small Amount of H.sub.2 or CO In Air at Lower Temperatures", Chemistry Letters (1984), 1295-1296. No month available.
Mingmei and Yufang, "A New Hydrogen Sensor With Rare Earth Complex Flouride", Sensors and Actuators B.S., (1992), 179-180. No month available .
Alcock Charles B.
Bakshi Nikesh
Bell Bruce F.
The University of Notre Dame
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