Author Archives: Ulf Nobbmann


Ulf Nobbmann received his PhD in colloidal physics from Oklahoma State University (USA) and has since focused on light scattering from biological molecules and nanoparticles. He joined Malvern Instruments in 2003, has held various positions involved in support. training, development of application knowledge & expertise within the Nanometrics group, and is currently Zetasizer Product Manager - Americas.

Published 18 Jun 2019

How to register for technical support

How can I access Malvern Panalytical content? The Malvern Panalytical website has a wealth of information available. A large part of the content is completely accessible without any restriction, yet some content requires registration. Occasionally, I get the comment that…READ MORE >

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Published 23 Apr 2019

Light scattering ISO standard anyone [ISO13321, ISO22412]?

What is the standard for dynamic light scattering? How can we ensure compliance with recommended light scattering quality standards? Is there an international standard for light scattering? Recently an interesting question arrived at our help desk about the validity of…READ MORE >

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Published 4 Apr 2019

Extended measurement run duration for better DLS correlation data?

What is the extended measurement duration option? Every once in a while questions about the advanced settings in the classic  Zetasizer Nano software come to us. Here is the exact question from a customer asking why to extend the correlation…READ MORE >

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Published 7 Feb 2019

Nanobubbles – Are they real?

Why don’t they float to the top? We all know what happens to bubbles in water: They float to the top and disappear, eventually. In a bubbly foam bath, the bubbles are stabilized with surfactants and other ingredients. This extends…READ MORE >

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Published 24 Oct 2018

How to add temperature dependant solvents to the dispersant list

How can I add ethanol to my Zetasizer software? You are using the Malvern Zetasizer and particularly like to determine particle size by dynamic light scattering (DLS). Great! The standard configuration of the default software allows a lot of flexibility…READ MORE >

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