Method and apparatus for measuring the capacity of absorbent materials to absorb substances dissolved in a liquid medium

Abstract

The invention relates to a method and a device for measuring the adsorption of adsorbent materials of chemical sub­stances dissolved in a liquid medium. The method comprises a container containing a liquid medium with magnetically particles of an adsorbent material, and a substance dissolved in the liquid medium, and placing the container in proximity to at least one perrnanent magnet. The separation distance between the perrnanent magnet and the container is increased, until the magnetic attraction of the permanent magnet no longer holds the magnetically active particles. The method comprises measuring the separation distance between the permanent magnet and the container at which ali or a predetermined amount of the magnetically active particles have fallen by gravity to the bottom of the container, and deterruining, by linear correlation, the mass of substance captured by the magnetically active particles based on the measured separation distance.