zeta potential analyzer

Wallis Zeta Potential Analyzer

Contact with Prolyse

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


measurement cell zeta potential analyzer

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

visit also http://www.cordouan-tech.com