Tag Archives: DLS

Self-installation…really? For some time now, Malvern Panalytical has been successfully offering our Zetasizer Nano range with self-installation as an option for our customers who want to get up and running as quickly as possible. The fact that this option has…READ MORE >

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 >

   Malvern Panalytical présente pour la première fois en France le Zetasizer Ultra les 26-27-28 mars 2019 lors du Salon Forum Labo à Paris expo Porte de Versailles, Hall 4, Stand D38-E39.   C’est un nouvel appareil de diffusion dynamique…READ MORE >

On October 2, 2018, we held a seminar entitled “Overcoming Characterization Challenges in Drug Formulation” in the Boston area.  It was a great opportunity to meet with many pharmaceutical scientists in the area and learn about their challenges and concerns. …READ MORE >

What causes the most headaches for a particle characterization scientist? There are many answers to this question, but one of the most obvious is dust or contaminants! As someone who regularly uses Dynamic Light Scattering (DLS) to measure particle size,…READ MORE >

How good can a gold standard be?   When performing dynamic light scattering (DLS) measurements, we sometimes encounter especially nice data. An interesting issue to consider is the level of data quality one can expect to achieve. What is the…READ MORE >

The peaks in your distribution are out of order? We recently received an email about the order of peaks in the Zetasizer software: For data evaluation, is it possible to rearrange the NNLS results by order of particle size populations?”…READ MORE >

Dynamic Light Scattering (DLS), sometimes referred to as Photon Correlation Spectroscopy or Quasi-Elastic Light Scattering, is a technique classically used for measuring the size of particles typically in the sub-micron region, dispersed in a liquid. The sensitivity of some modern…READ MORE >

The term polydispersity (or more recently dispersity without the poly, as per IUPAC recommendation) is used to describe the degree of “non-uniformity” of a distribution.  In the field of molecular/nanoparticular characterization, there are in principle two different definitions of polydispersity,…READ MORE >