Electrochemical reference electrode

Details Electrochemical reference electrode Electrochemical reference electrode

1974-07-22

1977-01-11

Tung, T.

Chemistry: electrical and wave energy

Processes and products

Vacuum arc discharge coating

204296, 260 4227, G01N 2740, G01N 2746

Patent

active

040025470

ABSTRACT:
An electrochemical reference electrode for use in ion potential measurements of solutions. The liquid junction structure of the electrode comprises a hydrophobic polymer having a suitable salt distributed therethrough and held in place to prevent leaching by a filamentary structure of the polymer. The liquid junction structure is a diffusion membrane material and permits ionic communication between the salt bridge solution of the electrode and the sample solution essentially by means of diffusion, rather than by liquid flow. The entire electrode body may be made of the polymeric material. The electrode is particularly suited for process applications.

REFERENCES:
patent: 2400099 (1946-05-01), Brubaker et al.
patent: 3438875 (1969-04-01), Watanabe et al.
patent: 3590810 (1971-07-01), Kopecky
patent: 3728303 (1973-04-01), Kometani et al.
Buchanan et al., "Analytical Chemistry", vol. 40, No. 3, Mar. 1968, pp. 517-521.

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