Chemistry: electrical and wave energy – Apparatus – Electrolytic
Patent
1981-04-29
1985-06-18
Tung, T.
Chemistry: electrical and wave energy
Apparatus
Electrolytic
204 1T, 204432, G01N 2746
Patent
active
RE0319155
ABSTRACT:
A device for the detection of and quantitative measurement of a gas in a given environment, such as alcohol in the breath or carbon monoxide in the atmosphere, is described. The device comprises intake and flow control means for the gas sample, and an electrochemical cell having an anode which provides a site for electrochemical reaction of the gas being detected, a cathode, a reference electrode, and an electrolyte in contact with the anode, cathode, and reference electrode. The anode, to ensure that the current production is a result of the gas being detected and not other gases, including oxygen, is maintained at a fixed potential in relation to the potential of the reference electrode. The device provides an accurate and inexpensive means of detecting and quantitatively measuring a gas contained in a given environment, i.e., alcohol in the breath of the subject being tested or carbon monoxide in the atmosphere.
REFERENCES:
patent: 2862859 (1958-12-01), Grosskopf
patent: 2898282 (1959-08-01), Flook et al.
patent: 2912367 (1959-11-01), Asendorf et al.
patent: 3028317 (1962-04-01), Wilson et al.
patent: 3103481 (1963-09-01), Robinson
patent: 3149921 (1964-09-01), Warner
patent: 3208926 (1965-09-01), Eckfeldt
patent: 3247452 (1966-02-01), Kordesch
patent: 3258411 (1966-06-01), Hersch
patent: 3275925 (1966-09-01), Kupferberg
patent: 3377256 (1968-04-01), Sambucetti et al.
patent: 3431182 (1969-04-01), Frant
patent: 3470071 (1969-09-01), Vertes et al.
patent: 3498888 (1970-04-01), Johansson
patent: 3795589 (1974-05-01), Dahms
Ives et al., "Reference Electrodes", 1961, pp. 360-378.
Mayell et al., "A Study of Surface Oxides on Platinum Electrodes", Journal of the Electro-Chemical Society, Apr. 1964, pp. 438-446.
Latimer, "The Oxidation States of the Elements and their Potentials in Aqueous Solutions", 2nd ed., 1952, pp. 339-348.
Grubb, "J. of the Electrochemical Society", Apr. 1964, pp. 477-478.
Muto et al., "New Methods of Microanalyzing Gases", Analysis & Instruments, vol. 6, No. 5, (1968), pp. 287-291.
K. A. Gresch u.a., "Die Coulometrische Analyse", Verlay Chermie, Weinheim, (1961), Seite 83, Insbe Abb 31.
W. Vielstick, "Brennstoff Element", Verlay Chermie, Weinheim, (1965), Seite 41, Insbes. Abs 3.
Hanar, "Electrode Potential Gradients and Cell Design in Controlled Potential Electrolysis Experiments", Analytical Chemistry, Aug. 1966, pp. 1148-1156.
Blurton Keith F.
Oswin Harry G.
Becton Dickinson & Company
Tung T.
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