Published 26 Sep 2017
Is there a maximum viscosity for DLS measurements? The Malvern Zetasizer can determine particle size by dynamic light scattering (DLS). In this technique, the intensity fluctuations are analyzed to find the corresponding diffusion coefficient that led to the fluctuations….READ MORE >
Tags: Boltzman, Boltzmann, coefficient, diffusion, Einstein
Published 8 Aug 2014
Randy Byrne, Malvern Instruments’ VP for Commercial Development, has formulated this excellent (not a trick-) question: “Which has the higher viscosity at room temperature – mayonnaise or honey? (Randy claims no originality for this question!) We’ll return to this later…… Now, one factor…READ MORE >
Tags: high shear, rheology, rheometer, sample preparation, viscosity
Published 1 Aug 2013
Yesterday we launched the Viscosizer 200, which is an innovation in automated viscosity measurement and molecular sizing using very small sample volumes. This new technology is driven by UV area imaging, and at its heart is a unique dual-pass capillary…READ MORE >
Tags: biopharmaceuticals, formulation, molecular size, size measurement, viscosity
Published 10 May 2012
My role as Product Technical Specialist for the range of rheology products at Malvern takes me all across the globe supporting our customers, and I’ve just come to the end of a ‘rheology tour’ of all the states in Australia……READ MORE >
Tags: Kinexus range, materials characterization, particle shape, Particle size, rheology
Published 30 Nov 2011
Don’t forget the new LC-GC webcast! Sponsored by Malvern Instruments, it will cover why you should use multi-detection for your size-exclusion chromatography system. Don’t miss out! If you haven’t already – sign up now for the free webcast tomorrow at 11 am…READ MORE >
Tags: chromatography, molecular weight, multi-detector, peptide, protein
Published 16 Nov 2011
A new LC-GC webcast sponsored by Malvern Instruments highlights the advantages of using multiple detection in size-exclusion chromatography. Thursday, December 1, 2011 11:00 AM (EDT) 16:00 PM (GMT) 17:00 PM (CET) The Benefits of Moving from Single to Multi-detector Size-exclusion…READ MORE >
Tags: molecular weight, multi-detection, size exclusion chromatography, viscosity
Published 4 Aug 2011
So the Malvern people are going to show up tomorrow morning to demonstrate their Zetasizer Nano… “Is there anything I should get ready for it?” you ask. Well, not really. We’ll bring along the instrument, a laptop with the latest…READ MORE >
Tags: buffer, complex solvent, dielectric constant, dynamic light scattering, nanometrics
Published 6 Jun 2011
A quick scan of the modern technology that I use every day – my smart phone being an obvious example – reminds me that actually I use only a few of its dazzling capabilities. I get the impression from customers…READ MORE >
Tags: rheology, rotational rheometer, shear rate, viscosity
Published 3 Mar 2011
From Paint Viscosity to mouth feel of yogurt, how Rheology testing can help create the optimum product. Welcome to my first blog. I’m Steve Carrington, product marketing manager at Malvern Instruments for our range of rheology instruments. Whilst I wouldn’t…READ MORE >
Tags: dispersion stability, paint, Particle size, rheology, viscosity