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Electrophoretic Light Scattering (ELS)

Electrophoretic Light Scattering for electrophoretic mobility and zeta potential measurement

Electrophoretic Light Scattering (ELS) is a technique used to measure the electrophoretic mobility of particles in dispersion, or molecules in solution. 

This mobility is often converted to Zeta potential to enable the comparison of materials under different experimental conditions.

Principles of Electrophoretic Light Scattering

The fundamental physical principle is that of electrophoresis. 

A dispersion is introduced into a cell containing two electrodes. An electrical field is applied to the electrodes, and particles or molecules that have a net charge, or more strictly a net zeta potential, will migrate towards the oppositely charged electrode with a velocity, known as the mobility, that is related to their zeta potential.

Our instrumentation

Malvern Panalytical offer leading instrumentation that uses electrophoretic Light Scattering for the measurement of electrophoretic mobility. 

The Zetasizer provides a simple, fast and accurate way to measure zeta potential, and uses a unique disposable capillary cell to ensure that there is no cross-contamination between samples. 

Zetasizer Lab

Classic side scatter particle size and zeta potential analyzer with enhance...
Zetasizer Lab

Zetasizer Pro

High performance, versatile and robust
Zetasizer Pro

Zetasizer Ultra

World’s most advanced light scattering system
Zetasizer Ultra
Zetasizer Advance Range

Zetasizer Advance Range

Light Scattering for every application

Measurement type
Zeta potential
Dynamic Light Scattering
Electrophoretic Light Scattering
Environment Lab - bench