Reference electrode and method of making same

Details Reference electrode and method of making same Reference electrode and method of making same

1986-01-06

1990-04-03

Tung, T.

Chemistry: electrical and wave energy

Apparatus

Electrolytic

204301, 204416, 204435, 20415321, G01N 2730, G01N 2746

Patent

active

049137930

ABSTRACT:
A reference electrode, optionally in combination with a measuring electrode to form a combination electrode, is disclosed in which the salt bridge comprises anionic and cationic ion exchange polymer. This polymer may be a diaphragm forming the liquid junction structure of the reference electrode. Polymer is preferably a mixture of anionic and cationic ion exchange polymer which may be either water insoluble or water soluble and is preferably converted to a form which binds equitransferent ions. When the polymer is substantially insoluble, a water-soluble thickener polymer may be incorporated in the polymer composition. Methods of measuring pH using the electrodes of the invention are also disclosed, particularly in high purity deionized water.

REFERENCES:
patent: Re24222 (1956-09-01), Patnode et al.
patent: 2614976 (1952-10-01), Patnode et al.
patent: 2927887 (1960-03-01), Proctor, Jr.
patent: 3498899 (1970-03-01), Kater et al.
patent: 3546087 (1970-04-01), Friconneau et al.
patent: 3681025 (1972-08-01), Dalgaard
patent: 3686091 (1972-08-01), Sawa et al.
patent: 3703457 (1972-11-01), Niedrach et al.
patent: 3730868 (1973-05-01), Niderach
patent: 3800410 (1974-04-01), Niedrach et al.
patent: 3856649 (1974-12-01), Genshaw et al.
patent: 3911901 (1975-10-01), Niedrach et al.
patent: 4002547 (1974-01-01), Neti et al.
patent: 4105509 (1978-08-01), Jungek
patent: 4115209 (1978-09-01), Freiser
patent: 4214968 (1980-07-01), Battaglia et al.
patent: 4282079 (1981-08-01), Chang et al.
patent: 4357143 (1982-11-01), Scott
patent: 4507194 (1985-03-01), Shimomura et al.
patent: 4552625 (1985-11-01), Van Der Velden
patent: 4597848 (1986-07-01), Oka et al.
Maneham, "Fluoride Electrode as a Reference in the Determination of Nitrate Low", Analytical Chemistry, vol. 42, No. 1, Jan. 1970, pp. 128 & 129.
Sigma Chemical Company, St. Louis, MO, 1987 Catalog-Face page, pp. 767-775.
Biorad Corporation, Richmond, CA-1986 Catalog-Face page, pp. 4-29.
Salt Bridges of Porous Glass and Ion-Exchange Membranes, W. N. Carson; C. E. Michelson; Karl Koyama; Anal. Chem. 27, 472-473 (1955).
Ibid, Chemical Abstracts, vol, 49, No. 11, Jun. 10, 1955 (7293f).
Upgrade Your pH Measurements in High-Purity Water, David M. Gray, Power, Mar. 1985, pp. 95-96.
pH Measurements in High Purity Water, Robert C. Hunt, Ultrapure Water, Sep./Oct. 1985; pp. 44-47, 50.
Performance Tests for the Measurement of pH with Glass Electrodes in Low Ionic Strength Solutions Including Natural Waters, William Davison and Woof, Anal. Chem. 1985, 2567-2570.
Physical Techniques in Biological Research, 2nd Edition, vol. 2, Part A; K. S. Spiegler, M. R. J. Wyllie, pp. 353-363, 1968 Academic Press.
Brochure, Xerotyt Reference System-Ingold GmbH & Co, KG.

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