Salt bridge liquid

Details Salt bridge liquid Salt bridge liquid

1983-05-17

1985-10-01

Tung, T.

Chemistry: electrical and wave energy

Processes and products

204403, 204416, 204418, 204420, 204435, G01N 2746

Patent

active

045444552

ABSTRACT:
Salt bridge liquid for use in potentiometric measurement of blood or a blood liquid.
The salt bridge liquid contains Na.sup.+ -ions and HCOO.sup.- -ions in substantially equimolar amounts, preferably in a concentration larger than or equal to 1 M, in particular about 4 M.
When this salt bridge liquid is used, the potentiometric measurement will give corresponding results when measuring a blood sample and the corresponding plasma sample because the suspension effect which is caused by the erythrocytes and which is seen when using other salt bridge liquids is substantially eliminated. Furthermore, different blood samples with the same ion concentration but with varying erythrocyte content will give corresponding measuring results.

REFERENCES:
patent: 3556950 (1971-01-01), Dahms
patent: 3833495 (1974-09-01), Grubb
patent: 3874850 (1975-04-01), Sorensen et al.
patent: 3972614 (1976-08-01), Johansen et al.
patent: 3997420 (1976-12-01), Buzza
patent: 4160714 (1979-07-01), Andersen
Grove-Rasmussen, "Acta Chemica Scandinavia", vol. 5, 1951, pp. 422-430.
Ole Siggaard-Anderson, "The Acid-Base Status of the Blood", 4th Rev. Ed., 1974, p. 156.
Orion Research Inc. Newsletter/Specific Electrode Technology, vol. 1, No. 4, Sep. 1969, pp. 21-23.
Linnet, "pH Measurements in Theory and Practice", 1. edition, 1970, pp. 60-64.
European Search Report, dated 3/08/83.

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