Skip to left navigation
Skip to page content
Dynamic light scattering (DLS), sometimes referred to as Quasi-Elastic Light Scattering (QELS), is a non-invasive, well-established technique for measuring the size and size distribution of molecules and particles typically in the submicron region, and with the latest technology lower than 1nm.
Typical applications of dynamic light scattering are the characterization of particles, emulsions or molecules, which have been dispersed or dissolved in a liquid. The Brownian motion of particles or molecules in suspension causes laser light to be scattered at different intensities. Analysis of these intensity fluctuations yields the velocity of the Brownian motion and hence the particle size using the Stokes-Einstein relationship.
Dynamic light scattering technology from Malvern Instruments offers the following advantages:
Free access to exclusive content including webinars, presentations, application notes, technical notes, whitepapers and more. Enter your search term in the box and use the drop down boxes to filter the results.
High alcohol based aniseed drinks (e.g. Absinthe, Ouzo, Raki, Sambuca) form a milky emulsion when water is added to them - the so-called Ouzo (or louche) effect. Adding alcohol to this emulsion recovers the clear solution. The size distribution is in...
In the second webinar in the particle size masterclass series, we will follow on from why you need to measure particle size, covered in the first masterclass, by looking at how to measure particle size. We’ll start with considerations for choosing a ...
Analytical systems from Malvern Instruments are now used routinely to advance inkjet formulation at Domino Printing Sciences plc in the UK, one of the world’s leading printing technology companies. Domino are best known for printing “sell-by” dates o...
This article highlights how engineering high performance ceramic inkjet inks relies on measuring viscosity across the broad range of shear rates experienced during printing. This shear range can be accessed by combining rotational rheometry for low s...
This white paper offers practical guidance on using a range of analytical techniques, including rheology, particle size and zeta potential measurement to assist in the formulation of Inkjet inks.
(Webinar - Recorded)
Particle Size Masterclass 2: which technique is best for me?
(March 19 2015)
All information supplied within is correct at time of publication.
Malvern Instruments pursues a policy of continual improvement due to technical development. We therefore reserve the right to deviate from information, descriptions, and specifications in this publication without notice. Malvern Instruments shall not be liable for errors contained herein or for incidental or consequential damages in connection with the furnishing, performance or use of this material.
Malvern and the 'hills' logo, Bohlin, Gemini, Insitec, ISys, Kinexus, Mastersizer, Morphologi, Rosand, SyNIRgi, Viscotek and Zetasizer, are International Trade Marks owned by Malvern Instruments Ltd.