Oxygen diffusion coefficient and oxygen permeability of metmyoglobin solutions determined in a diffusion chamber using a non-steady state method.

Non-steady state measurements of oxygen diffusion through various model layers can be performed using a diffusion chamber that was described earlier [1, 2]. A closer analysis of these measurements showed that they not only yield the oxygen diffusion coefficient (DO2) of the diffusion layer, but also the oxygen permeability (PO2). In this study DO2 and PO2 have been determined in solutions of metmyoglobin (metMb) with concentrations varying between 5 and 40 g/dL at 25 degrees C.