Zeta-Potential-Analyzer ZPA 20
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Zeta Potential Analyzer distance z from surface electric potential shear plane IHP immobile layer diffuse layer water dipole

Electrical double layer and zeta potential The electrical potential across the electric double layer can also be divided into two parts. Across the immobile layer the absolute value of the potential is assumed to decrease linearly. Inside the diffuse layer the electrical potential is defined by a Boltzmann distribution. The potential inside the immobile layer is experimentally inaccessible but is also not relevant for practical applications. The potential at the transition between immobile and diffuse layer on the other hand can be measured. electric potential The ζ potential directly...

Z e t a P o t e n t i a l A n a l y z e r Z PA 2 0 ZPA 20 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. The ZPA 20 uses removable measuring cells for various types of materials. Hence, plate shaped samples as well as fibres and powders can be easily prepared and placed into the system. A consistent packing density of powders and fibres can be ensured using a...

bidirectional oscillating streaming potential / current streaming potential streaming current Operating pressure pressure measurement automatically changeable with optional liquid dosing unit LDU 25 Measuring cells MC-ZPA/PF for fibres, powders and granulate materials for plate shaped solid materials; sample dimensions: 20 mm x 10 mm x up to 2 mm Typical measuring duration for zeta potential Dimensions (L [mm] x W [mm] x H [mm]) Weight Power supply DataPhysics Instruments GmbH • Raiffeisenstraße 34 • 70794 Filderstadt, Germany phone +49 (0)711 770556-0 • fax +49 (0)711 770556-99...