G - Physics – 01 – N
Patent
G - Physics
01
N
150/11
G01N 27/28 (2006.01) C09K 3/00 (2006.01)
Patent
CA 1313486
ABSTRACT A flexible gas-impermeable package containing a blood facsimile reference solution for use in blood gas electrolyte analysis comprises ionic potassium and calcium, tonometered at elevated temperature with oxygen and carbon dioxide. The package content is free of voids. The solution is produced by constituting an aqueous buffered solution containing ionic potassium at a predetermined concentration and subjecting the solution to tonometry with said gases. Following start of tonometry, ionic calcium is admixed in a predetermined amount with the tonometered solution. During the packaging process the solution is maintained at subatmospheric pressure ranging from 625 to about 700 mm Hg and at a temperature higher than the use temperature.
579321
Burgess Bruce M.
Enzer Steven E.
Hendershot Ricky G.
Wyman Jack S.
Mallinckrodt Sensor Systems Inc.
Ridout & Maybee Llp
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