Zeta Potential Analyzer

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