SurPASS 3 is an analytical instrument for measuring the zeta potential of solid surfaces using streaming potential and streaming current techniques. It enables direct analysis of real materials—ranging from flat surfaces and fibers to porous media—without requiring model samples. The system provides insight into surface charge behavior, including adsorption and desorption processes, pH-dependent charging, isoelectric points, and surface modification effectiveness. It supports automated titration and simultaneous measurement of zeta potential, pH, conductivity, temperature, and pressure, enabling comprehensive surface characterization in real time. With high sensitivity and reproducibility, SurPASS 3 is designed for applications in material development, process optimization, and quality control across industries such as membranes, biomaterials, polymers, coatings, and semiconductors.
Anton Paar is a premium provider of analytical and material characterization solutions for the hydrogen value chain, specializing in the development of fuel cells, electrolyzers, and storage systems. They provide a comprehensive suite of instruments used to optimize catalyst efficiency, characterize gas diffusion layers, and analyze the structural properties of hydrogen storage materials (such as metal-organic frameworks). Their expertise spans the full research and production cycle—from the rheological behavior of catalyst inks to high-pressure gas sorption analysis and inline process monitoring for green hydrogen production.
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