SYSTEM FOR DETERMINING THE ZETA POTENTIAL FOR CHARACTERISING A FIXED LIQUID PHASE BORDER WITH CONTROLLED PRESSURE PROFILE APPLICATION

摘要

Device (20) and method for determining information indicative of a zeta potential for characterizing a boundary between a solid phase and a liquid phase, wherein the device (20) comprises a pressure vessel (1) in which the liquid phase is receivable, a measuring cell ( 5) disposed downstream of and in fluid communication with the pressure vessel (1) and in which the solid phase is receivable, a reservoir (7) disposed downstream of and in fluid communication with the measuring cell (5), pressurizing means (19) which is adapted to act on the pressure vessel (1) with a pressure profile with a time-continuous pressure change such that liquid phase from the pressure vessel can be conveyed through the measuring cell (5) into the reservoir (7), and an acquisition device ( 11) for detecting the information indicative of the zeta potential at the measuring cell (5) during the Beaufschlagens the pressure vessel (1) having the pressure profile.