Tag Archives: materials characterization


Published 25 Sep 2019

Rh or Rg: Which is best for my GPC/SEC samples?

The primary goal when employing gel permeation / size exclusion chromatography (GPC/SEC) is often to determine the molecular weight of a macromolecular sample.  Multi-detector systems, such as Malvern Panalytical’s OMNISEC and TDAmax systems, are able to offer a range of…READ MORE >

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Published 13 Aug 2019

Can my GPC/SEC chromatogram be trusted?

You’ve done the hard parts to get your GPC/SEC instrument ready: prepared the mobile phase, stabilized the detector baselines, and prepared your sample.  After injection and completion of your sample sequence, you have acquired data.  Congrats!  Now, before you even…READ MORE >

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Published 7 Mar 2017

Can I use DLS for xyz?

How can I use DLS for sample xyz? What sample concentration / refractive index is needed for reliable DLS size measurements? Has it been done before? In Dynamic Light Scattering (DLS) intensity fluctuations in the sample are analyzed to obtain…READ MORE >

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Published 11 Aug 2015

Morphologi G3-ID: A new tool for cement characterisation

When working with a couple of our Morphologi G3-ID cement customers I have come to realize that cement is an incredibly complex product. Working with one of our customers in the cement industry we wrote an article, published last year…READ MORE >

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Published 30 Jun 2015

Key protein features in the Zetasizer software

The Zetasizer has some optional advanced protein features that you may not be aware of: DLS Debye Plot: a dynamic Debye plot of the measured hydrodynamic size as a function of sample concentration to obtain the dynamic Virial coefficient (also known…READ MORE >

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