Zeta potential analyzer SurPASS™ 3

for environmental analysisfor the pharmaceutical industryfor the cosmetics industry

Electrokinetic Analyzer for Solid Surface Analysis: SurPASS™ 3 SurPASS™ 3 is a high-end electrokinetic analyzer featuring fully automated zeta potential analysis of macroscopic solids in real-life conditions. SurPASS™ 3 employs the classic streaming potential and streaming current method for a direct analysis of the surface zeta potential. The zeta potential is related to the surface charge at a solid/liquid interface and is a key parameter for understanding surface properties and developing new specialized materials. Automatic pH scans and time-dependent recording of adsorption kinetics allow for a deep understanding of the surface chemistry. Key Features State-of-the-art solid surface analysis Direct solid/liquid interface analysis by means of streaming potential and streaming current measurement Full range of zeta potential down to a few millivolts Instant access to information on surface charge From tiny particles to large wafers Elaborate measuring cells for any sample geometry Cylindrical Cell for powders (min. particle size 25 µm ) and fibers Clamping Cell for non-destructive measurement of planar solids Adjustable Gap Cell for small samples (20 mm x 10 mm, 14 mm dia., 15 mm dia.) Sample-specific measuring cells for contact lenses, hollow fiber membranes, and flexible tubings Higher sample throughput Quick exchange of measuring cells, ‘plug-in and go’ functionality Recording of measuring data at >5 Hz Zeta potential measurement in <2 minutes