Tag Archives: zeta


Published 15 Jul 2020

Measuring Zeta Potential in Saturated Ionic Strengths

At Malvern Panalytical we have been developing a novel new technique to carry out micro-electrophoresis measurements called the diffusion barrier method.

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Published 1 Apr 2020

Zetasizer: Self-installation – No Fooling!

Self-installation…really? For some time now, Malvern Panalytical has been successfully offering our Zetasizer Nano range with self-installation as an option for our customers who want to get up and running as quickly as possible. The fact that this option has…READ MORE >

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Published 12 Mar 2019

Determining the quality of asphalt emulsions using particle size and zeta potential analysis

What are asphalt emulsions and why are they important? They are liquid asphalt cement emulsified in water. They compose of bitumen, water, and an emulsifying agent or surfactant. Asphalt emulsions are integral to the optimum mechanical properties. Modified asphalt emulsions…READ MORE >

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Published 5 Sep 2018

Find the Field Strength in your Zetasizer

How can we obtain the applied field strength? When performing electrophoretic light scattering (ELS) measurements, the sample is exposed to an externally applied electric field, and we observe the extra movement that the particles undergo as a result of the…READ MORE >

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Published 19 Jun 2018

A basic introduction to Electrophoretic Light Scattering (ELS) for Zeta potential measurements – Q&A

I presented a new webinar focusing on “A basic introduction to Electrophoretic Light Scattering (ELS)“. In this presentation, I explained the importance of Zeta potential measurements for colloidal dispersions and how it is determined using ELS. As you certainly know,…READ MORE >

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Published 23 May 2018

Top Applications for the Zetasizer

Where is the Zetasizer used?   For around two decades, the Zetasizer range has been the de facto standard for performing dynamic light scattering (DLS) measurements on a wide range of particles and materials. Today’s launch of the┬áZetasizer Pro and…READ MORE >

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Published 6 Mar 2018

Zeta potential in salt solution (or any other ions)

Will the zeta potential of my vesicles vary in different buffers?   The short answer is: Yes, it will. In select cases, the value of the measured zeta potential may remain close to the same. However, that is the exception…READ MORE >

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Published 5 Sep 2017

What is the zeta deviation?

Zetasizer: What is the zeta potential deviation?   The Malvern Zetasizer software report for zeta potential shows a parameter with the name Zeta deviation. You can see this parameter directly below the mean Zeta potential in the standard Zeta Potential(M)…READ MORE >

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Published 3 Aug 2017

Parenterals: What are lipid emulsions?

Intralipid-Lipid emulsions Lipid emulsions are administered intravenously for a variety of purposes: To help feed patients with temporary difficulty in ingesting food orally For better transport of lipophilic drugs (fat-friendly active ingredient (API) which is not soluble in water) For…READ MORE >

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