Potassium ion-selective membrane electrode

Details Potassium ion-selective membrane electrode Potassium ion-selective membrane electrode

1981-10-28

1982-11-30

Kaplan, G. L.

Chemistry: electrical and wave energy

Processes and products

Vacuum arc discharge coating

549347, G01N 2730

Patent

active

043614736

ABSTRACT:
In an electrode for determining the potassium ion content of a liquid sample to be tested, the electrode including a membrane having incorporated therein an ion selective component, the improvement in which the ion specific component is a compound of the formula: ##STR1## wherein each R.sub.1, R.sub.2, R.sub.3, R.sub.4, R.sub.5, R.sub.6, R.sub.7, and R.sub.8 is hydrogen or an alkyl group containing between one and about 20 carbon atoms, p is 0 or 1, n is one or more, and, each s and r, independently, is 1, 2, or 3, provided that, when p is 1, n is 8 or more.

REFERENCES:
patent: 4233136 (1980-11-01), Spaziani et al.
Toshiyuki Shono et al., J. Electroanal. Chem., 132, 99-105, (1982).
E. Pretsch et al., Research/Development Magazine, vol. 25, No. 3, pp. 20-23, Mar. 1974.
Tamura et al. (1980), Bull. Chem. Soc. Jpn., 53, 547-548.
Kimura et al. (1979), J. Electroanalyt. Chem. 95, 91-101.
Cammann (1979), Working with Ion-Selective Electrodes, Chemical Laboratory Practice, 80.
Pederson (1967), J. Amer. Chem. Soc. 89:26, 7020-7036.

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