I am interested in measuring the zeta potential of the polyethylene particles in water. Can I measure it in the form of suspension (PE+ water) or solid particles only ?
Any reference material related to the methods would be highly appreciated.
Zeta potential is a property of the interface between the solid and the liquid, notably a liquid containing dissolved electrolyte. So, the concept of zeta potential for the dry particles is meaningless.
The most common method used for measuring zeta potential of particles in liquids is electrophoretic light scattering.
Please describe a bit more about your particles (e.g., size) and application. Why do you want to measure zeta potential? Does your application use the particles in the dry state? The more information you can provide, the better.
Hello Mr. John, First I would like to thank for your prompt response.
Actually, I am interested in measuring the change in the surface charge, when the particles interact with the liquid or any other solvent. The size of the particles is less than 100 um and I am using the particles in suspension form.
I hope this answer could help you.
Due to the size of the particle, I recommend implementing a device similar to the one here (https://analytik.co.uk/zeta-potential-who-what-why/) there you can find a couple of equations to obtain the zeta potential. Basically, you have to obtain a video from the particles (in water) in an electric field.
Please follow the procedure as listed in our paper. The values can be found for PE microplastics in the supplementary information. Article Aging of microplastics increases their adsorption affinity t...
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