The Zeta Potential Analyzer ZPA 20 is a compact measuring instruments that utilises the patented bidirectional oscillating streaming potential method. It is designed to measure the zeta potential of various macroscopic solid samples with highest accuracy and within shortest time. With its powerful stepping motor and innovative method, the ZPA 20 can measure zeta potential values in less than a minute and with high statistical quality.
Application focus

Measurement of Zeta potential on plate shaped solids, fibres, powders and granulate materials
Determination of the isoelectric point
Adsorption kinetics of surfactants, polymers, etc.