Noble-gas partition coefficients between blood plasma and red blood cells as determined in this study for one subject (S1) compared with values from the relevant literature.

The partition coefficients are expressed as nondimensional ratios of the gas concentration in the plasma (in cm3STP of gas per cm3 of plasma, with an assumed plasma density of 1.025 g/cm3) to the gas concentration in the red blood cells (in cm3STP of gas per cm3 of red blood cells, with an assumed red blood cell density of 1.125 g/cm3). Note that the values listed are based on the separation of the two phases in a single sample only and cannot therefore be considered as generally representative.aMeasurement error for red blood cells estimated from the maximum deviation from a linear interpolation [23].bCalculated using a linear relationship between the partition coefficients of red blood cells (44%) and plasma (56%).