| 摘要 |
PCT No. PCT/US90/01422 Sec. 371 Date Sep. 27, 1991 Sec. 102(e) Date Sep. 27, 1991 PCT Filed Mar. 16, 1990 PCT Pub. No. WO90/11527 PCT Pub. Date Oct. 4, 1990.A stable reference solution for calibrating and monitoring blood gas instrumentation is disclosed. The solution comprises an aqueous mixture containing a hemoglobin solution derived from a mammalian source which comprises at least about 95% reduced hemoglobin. The solution additionally contains a bicarbonate buffer and a metal catalyzed methemoglobin reducing system and an organic buffer. To provide a control element having a variety of properties similar to fresh, whole, human blood, the reference solution is stored in a sealed ampule under an inert atmosphere containing CO2 until just prior to use. The ampule is subsequently opened and the solution is equilibrated with a gas mixture having components which provide gasses in a physiological range to the solution. The solution is characterized by exhibiting properties similar to fresh blood subsequent to equilibration and an extended storage life prior to equilibration.
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