Determining the electrical charge on material surfaces

11th October 2018

Testa Analytical Solutions has introduced a Surface Zeta Potential option for its NanoBrook range of zeta potential analysers.

Adding the new surface zeta potential option to a Nanobrook analyser allows users to measure the electrical charge on materials such as coated glass, plastic, tape or other flexible surfaces. The system uses known probe particles and purpose-designed electrode to calculate surface zeta potential.

Using phase analysis light scattering (PALS) technology, Nanobrook analysers provide an impressive platform for determining the surface charge on macroscopic materials. A Nanobrook analyser with Surface Zeta Potential option can be used to measure electrical charge on surfaces up to three orders of magnitude lower than with a conventional system based on electrophoretic light scattering technology.

Using the new option scientists can now precisely measure surface zeta potential in less than a minute. 





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