Method for calibration of gas measuring sensors for dissolved ga

Details Method for calibration of gas measuring sensors for dissolved ga Method for calibration of gas measuring sensors for dissolved ga

1997-02-13

1998-06-09

Raevis, Robert

Measuring and testing

Instrument proving or calibrating

Gas or liquid analyzer

G01N 3300

Patent

active

057637601

ABSTRACT:
Method for calibrating gas measuring sensors for dissolved gasses and method for measuring the concentration of CO.sub.2 in blood with the assistance of such a calibration method two or more separate calibration fluids in which a gas to be measured is dissolved with respectively different partial pressures are employed. For simplification, another (i.e., a second) calibration fluid is produced from one (i.e., a first) calibration fluid by modifying the partial pressure of the first calibration fluid to a different value, preferably by material transport between the first fluid and a gas phase. Analysis equipment operating with this method, particularly for CO.sub.2 measurement of blood, become simpler, smaller and less expensive.

REFERENCES:
patent: 4905497 (1990-03-01), Shindo et al.
patent: 5185263 (1993-02-01), Kroneis et al.
patent: 5207087 (1993-05-01), Costello
patent: 5212092 (1993-05-01), Jackson et al.
patent: 5234835 (1993-08-01), Nestor et al.
patent: 5329804 (1994-07-01), Germany

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