Electrochemical monitoring

Details Electrochemical monitoring Electrochemical monitoring

1972-01-19

1976-06-22

Tung, T.

Chemistry: electrical and wave energy

Processes and products

Vacuum arc discharge coating

G01N 2746

Patent

active

039649881

ABSTRACT:
A system for electrochemical monitoring for the appearance of an ionic species of interest in a first flow stream by merging the first flow stream with a second flow stream containing a mixture of the ion to be sensed and a second non-interfering tag ion in a substantially fixed ratio. A pair of ion-sensing electrodes responsive, respectively, to the ionic species of interest and the tag ion are used to detect the activity of the species at a location in the merged stream. The difference between the measured potentials of the two ionic species in the merged stream is a constant ratio which is unaffected by fluctuations in the rate at which the two flow streams are mixed.

REFERENCES:
patent: 3306837 (1967-02-01), Riseman et al.
patent: 3556950 (1971-01-01), Dahms
Jacobson, "Anal. Chem., " vol. 38, No. 13, Dec. 1966, pp. 1951-1954.
Monahan, "Anal. Chem.," vol. 42, No. 1, 1970, Jan., pp. 128 & 129.

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