Author Archives: Ulf Nobbmann

This year’s Pittsburgh Conference on Analytical Chemistry and Applied Spectroscopy (or Pittcon for short) is taking place Online, from March 8 – March 12, 2021. As in previous years, there is a large selection of Pittcon short courses 2021 relevant…READ MORE >

We launched the latest generation of the Zetasizer family, the Advance series. I received variations of two questions a few times: What is so good about the new version? Can you give me some bullet points? Well, glad you asked….READ MORE >

How can we get the fire cloud particle size? Typically I write about nanoparticles. The current fire situation in California reminded me that the larger than nano-size range is also affecting our daily life. While smoke forms clouds we can…READ MORE >

This question landed on my desk recently. “We have a Zetasizer in our lab. We have taken the size and zeta potential of a mixture of two particle types. I am wondering to what extent the zeta potential and size would…READ MORE >

The Zetasizer Nano in review… When we introduced the Zetasizer Nano at www.zetasizer.com in 2003 it was ground-breaking. There were several reasons for it. For instance, a step-change development that created an entirely new generation of lab equipment. At the…READ MORE >

You have been using your Zetasizer for a while. Due to the current physical distancing situation you would like to move your Zetasizer to a different lab. Is it possible to just relocate a system to another building? What precautions…READ MORE >

Every once in a while we receive a Zetasizer question that we have heard before. Here is an example of such for the dip cell: “How do I clean the Zetasizer dip cell? What is a good cleaning protocol?” Most…READ MORE >

One of the advanced features in the Zetasizer Nano software is protein charge determination. In order to take advantage of the calculator, both size Dynamic Light Scattering (DLS) and electrophoretic mobility (zeta, ELS) data combine. In this post, we show…READ MORE >

This year’s Pittsburgh Conference (or Pittcon for short) is taking place in Chicago, from March 1 – March 5, 2020. I noticed the earlier early bird time frame for Pittcon short courses. As in previous years, there is a large…READ MORE >