Method for calibration of 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
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United States of America Patent
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Jun 9, 1998
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N/A
app pub date -
Feb 13, 1997
filing date -
Feb 13, 1996
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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.
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