Wallis Zeta Potential Analyzer
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Telephone: +31 (0)162 383100
A High Resolution Technique! 30 times Higher!
Wallis™ Zeta Potential Analyzer is:
- Purely dedicated to nanoparticle and colloidal charge characterization
- Ideal tool for studying colloidal suspension’s stability and nanoparticles’ electrophoretic properties
- A compact and robust system
- A versatile and user friendly solution for zeta potential measurements
“Simple, robust, artifact-free, high resolution measurements!”
Technologies & Innovations
The Wallis Zeta Potential analyzer includes:
Key benefits
- No electro-osmosis→Artifact-free measurements
- Improved L.D.E. 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
Request an Quotation or Questions?
Do you want a non-committal quotation or you have questions?
contact us on:
Telephone: +31 (0)162 383100
or click here to contact us via website
Read more about the Wallis Zeta Potential Analyzer
Main characteristics
- Zeta potential measurement range: -200mV to +200 mV
- High resolution measurement: better than 0.1 mV
- Dip cell with unique high durability amorphous carbon electrodes, easy to remove and to place
- ZetaQ proprietary software (lien vers onglet ZetaQ)
- Compliant with ISO 13099-2 Colloidal system – methods for Zeta potential determination – Part 2
Zeta Potential
is a fundamental property of colloidal suspension related to the effective surface electrical charges of particles immersed in a solvent. ζ measurement is very important because it gives an indication on formulation stability and electrophoretic properties of NPs. Zeta potential is measured by the well-known technique of Laser Doppler Electrophoresis.
Laser Doppler Electrophoresis principle
An alternative electrical field/voltage is applied between two electrodes immersed deeply in the colloidal suspension; the charged particles are forced into a translation motion (electrophoresis) with a speed (ν) proportional to the applied electrical field. The electrophoretic mobility is defined by the ratio between the particle speed and the applied field amplitude.
Consumables use
Designed for standard disposable and quartz cuvette → Easy-to-fill, compatible with organic solvents and high-pH suspensions
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
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