System for Determining the Zeta Potential for Characterizing a Solid/Liquid Interface With Controlled Profile Pressure Loading

摘要

A device determines information indicative for a zeta potential at the interface between a solid phase and a liquid phase. The device includes a pressure vessel, in which the liquid phase can be accommodated and a measuring cell, downstream of the pressure vessel and such that it can be brought into fluid communication with the pressure vessel and in which the solid phase can be accommodated. A storage vessel is downstream of and in fluid communication with the measuring cell. A pressure loading apparatus, loads the pressure vessel with a pressure profile with a temporally continuous pressure change so a liquid phase can be conveyed out of the pressure vessel through the measuring cell into the storage vessel. A detection apparatus detects the information indicative for the zeta potential at the measuring cell during the loading of the pressure vessel with the pressure profile.

主权项

1. A method for determining information being indicative for a zeta potential for characterising an interface between a solid phase and a liquid phase, wherein the method comprises:
accommodating the liquid phase in a pressure vessel; accommodating the solid phase in a measuring cell, which is arranged downstream of and such that it can be brought into fluid communication with the pressure vessel; arranging a storage vessel downstream of and in fluid communication with the measuring cell; loading the pressure vessel with a pressure profile with a temporally continuous pressure change in such a manner that as a result liquid phase can be conveyed out of the pressure vessel through the measuring cell into the storage vessel; and the information being indicative for the zeta potential at the measuring cell during the loading of the pressure vessel with the pressure profile.