Ion concentration-measuring method

Details Ion concentration-measuring method Ion concentration-measuring method

1990-02-16

1992-05-12

Tung, T.

Chemistry: electrical and wave energy

Processes and products

Processes of treating materials by wave energy

20415313, 20415315, 204400, 204407, 204409, 204411, 204416, G01N 2726, G01N 27333

Patent

active

051124548

ABSTRACT:
The electromotive force of a standard liquid for correction is measured. Both before and after this measurement, the electromotive force of a reference liquid is measured at least once. A calibration curve is prepared based on the resultant data. The calibration curve is used to convert the electromotive force difference between a test liquid (the ion concentration of which is to be measured) and the reference liquid. Both before and after the measurement of the electromotive force of the test liquid, the electromotive force of the reference liquid is measured at least once. By so doing, the electromotive force difference between the test liquid and the reference liquid is obtained. The ion concentration of the test liquid can be detected accurately by plotting the electromotive force difference against the calibration curve.

REFERENCES:
patent: 3556950 (1971-01-01), Dahms
patent: 4043756 (1977-08-01), Sommervold
patent: 4109505 (1978-08-01), Clark et al.
patent: 4512852 (1985-04-01), Tsuboshima et al.
patent: 4600494 (1986-07-01), Bromberg et al.
patent: 4627893 (1986-12-01), Cormier et al.
patent: 4647362 (1987-03-01), Watanabe
patent: 4668346 (1987-05-01), Entwistle

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