Method for continuous measurement of the sulfite/sulfate ratio

Details Method for continuous measurement of the sulfite/sulfate ratio Method for continuous measurement of the sulfite/sulfate ratio

1983-08-04

1985-08-06

Metz, Andrew H.

Chemistry: electrical and wave energy

Processes and products

204400, G01N 2752

Patent

active

045334404

ABSTRACT:
The redox potential is used as a measure of the ratio of sulfite and sulfate ions in a solution containing these ions. In one embodiment of the present invention a slip stream sample of a process solution is divided into two components one of which is oxidized to serve as a reference solution. The ratio of sulfite and sulfate ions or the oxidation state of the solution is indicated by the oxidation potential of a process solution or the potential difference between electrodes disposed within a process solution and a reference solution.

REFERENCES:
patent: 3692624 (1972-09-01), Yrjala
patent: 3826971 (1974-07-01), Jasinski et al.
patent: 3959108 (1976-05-01), Plumpe, Jr.
Instrumental Methods of Analysis by H. H. Willard et al., 4th Edition, (Chapter 20) pp. 531-541.

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