Process and apparatus for the electrochemical determination of o

Details Process and apparatus for the electrochemical determination of o Process and apparatus for the electrochemical determination of o

1991-09-11

1993-08-24

Johnston, Jill A.

Chemistry: analytical and immunological testing

Blood gas

436 52, 436 63, 422 81, 422 8201, 422 8203, 422 8204, 20415317, 204403, 204415, G01N 3350

Patent

active

052388530

ABSTRACT:
In a blood gas analyzer, a substantially oxygen-free measurement solution is fed through a measuring cell as far as a diffusion cell in which the measurement solution is brought into contact with a blood sample to be tested. The gases dissolved in the blood sample diffuse through a membrane in the diffusion cell into the solution. The measurement solution is then propelled in the reverse direction to feed into the measuring cell. In the measuring cell, the measurement solution is electrochemically measured to determine a value which is related to the partial pressure of oxygen (pO.sub.2) in the sample.

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