METHOD AND DEVICE FOR THE DETERMINATION OF THE MOLECULAR diffusion coefficient in a porous medium.

摘要

A device for the measurement of the molecular diffusion coefficient, characterized in that they have a holder (1-2) comprises of electrically non-conductive material for the porous medium (4), on two opposite ends of the container (1-2) has a buffer container ( 5), two electrodes (6 and 7), one in each buffer, and a source for a potential gradient (9) between the electrodes (6 and 7). The method is characterized by the application of a potential gradient over a quantity of the porous medium through which the diffusion process is accelerated.