The solubility of ammonia in pooled human plasma was measured by a constant flow equilibration method. The solubility coefficient in liter NH3 (STPD) per liter plasma at 1 mm Hg partial pressure of ammonia was found to be 1.07, .91, .83 and .79 at 32, 37, 40.5 and 41.5℃, respectively. Submitted on September 18, 1958
The partial pressure of ammonia in alveolar air was measured and found to be the same (within the limits of experimental error) as the calculated partial pressure of ammonia in arterial plasma. It is likely that ammonia is equilibrated between alveolar air and the blood during its passage through the pulmonary capillaries.
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