Zeta potential analyzer WALLIS™

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WALLISζTM is an innovative high resolution Zeta potential analyzer purely dedicated to nanoparticle and colloidal charge characterization. Based on a modern version of Laser Doppler Electrophoresis (LDE) technique Ideal tool for studying colloidal suspension’s stability and nanoparticles’ electrophoretic properties Key benefits No electro-osmosis → Artifact-free measurements Improved LDE technology → Efficient, reliable & simple High-resolution measurement → Accurate & repeatable Zeta potential analysis High durability electrodes → robustness & cost-effectiveness Designed for standard disposable and quartz cuvette → Easy-to-fill, compatible with organic solvents and high-pH suspensions Advanced software functionalities (Time, pH, Temperature kinetic modes, SOPs, reporteditor, etc.) Easy-to-use and intuitive Graphical User Interface (GUI) software Technologies & innovations Dip cell : simple, robust, artifact-free Simple and easy sample preparation ; no risk of bubble Robust : high durability vitreous carbon electrodes Artifact-free : optimized dip cell electrodes design → no electro-osmosis bias High resolution measurements : sampling frequency 30 times higher than competitors / significantly improving measurement resolution down to 0,1 mV Main characteristics Zeta potential measurement range: -500mV to +500 mV High resolution measurement: better than 0.1 mV Dip cell with unique high durability amorphous carbon electrodes ZetaQ proprietary software (lien vers onglet ZetaQ) Compliant with ISO 13099-2 Colloidal system – methods for Zeta potential determination – Part 2