Temperature insensitive calibration system

Details Temperature insensitive calibration system Temperature insensitive calibration system

G - Physics

01

N

G01N 33/00 (2006.01)

Patent

CA 2071540

-13- TEMPERATURE INSENSITIVE CALIBRATION SYSTEM ABSTRACT OF THE DISCLOSURE A multi-phase control and/or calibration system consists of a first non-aqueous liquid phase containing an amount of dissolved oxygen (O2) in which the O2 partial pressure is made relatively temperature insensitive over an ambient temperature range of interest, a second, aqueous solution, immiscible with the first solution phase and containing an amount of dissolved carbon dioxide (CO2) and one or more solute species that provide temperature stability with respect to the partial pressure of CO2 over the ambient temperature range of interest. The liquid phases are in equilibrium with a vapor phase and the system may be sealed with a storage atmosphere.

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