Reference liquid for blood gas equipment

Details Reference liquid for blood gas equipment Reference liquid for blood gas equipment

1978-01-05

1979-08-07

Padgett, Benjamin R.

Compositions

Nonreactive analytical, testing, or indicating compositions

23230R, 23230B, 252312, 252316, 424 2, 424 3, 424350, 424352, C09K 300

Patent

active

041637348

ABSTRACT:
A stable synthetic water based reference liquid for quality control and/or calibration of blood gas measuring equipment, said liquid being enclosed in a gas-tight container and containing HCO.sub.3.sup.- ions, H.sup.+ ions, CO.sub.2 gas, and O.sub.2 gas plus an additional pH buffer system different from the pH buffer system constituted by the HCO.sub.3.sup.- ions and the CO.sub.2 gas, said liquid showing, at a fixed temperature, known pH, pCO.sub.2 and pO.sub.2 values, said liquid additionally containing oxygen reversibly contained in a dispersed non-proteinaceous organic substance which shows higher solubility for oxygen than does water, and, optionally, a coloring component showing maximum or significant absorption at about 500 nm, said organic substance being

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