Chemistry: analytical and immunological testing – Composition for standardization – calibration – simulation,... – Blood gas standard or control
Patent
1988-10-14
1991-10-29
Lacey, David L.
Chemistry: analytical and immunological testing
Composition for standardization, calibration, simulation,...
Blood gas standard or control
436 68, 422 681, 422 81, 73 1R, G01N 3100, G01N 2100, G01N 700
Patent
active
050616315
ABSTRACT:
Electrodes for the measurement of pCO2 and/or pO2 are calibrated with an exposed aliquot of a calibration liquid. A constituent such as a ferrioxalate salt in the calibration liquid is converted to the gas in a reproducible concentration by exposure of the aliquot to light. In some instances, the calibration liquid is equilibrated with air prior to exposure. Some mechanisms of light generation of carbon dioxide also consume oxygen, so as to depress the pO2 value by a reproducible amount. The use of two different calibration liquids enables both one-point and two-point calibration of the Clark oxygen electrode and the Severinghaus pCO2 electrode of a blood gas instrument.
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Chan William K. Y.
Doernberg Alan M.
Fisher Scientific Company
Lacey David L.
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