A METHOD FOR DETERMINING INERT GAS (“N2”) SOLUBILITY IN URINE*

Abstract
A method for determining the inert gas content (N2-A) of a fluid within 0.004 volumes per cent is described. A Van Slyke manometric apparatus is used to measure the amount of this gas contained in a 25 ml sample of fluid after absorbing all O2 and CO2. The solubility of N2-A in air in various human urines has been determined at 37[degree]C. Empirical relationships of solubility to the specific gravity, osmolality and chloride concentration of urine are described.