What’s better than a nice cup of tea and a chat?

The Zetasizer Nano is the world's most widely used light scattering system, for measuring size, zeta potential and molecular weight. Applications range from characterizing high concentration colloids and nanoparticles, through to measurement of proteins and macromolecules in their native state, requiring as little as 12 microlitres of sample. The Zetasizer Nano can be used for the comprehensive characterization of proteins, colloids and nanoparticles, and is simple to use, highly sensitive, versatile and fast! This videos shows how quickly and easily a measurement can be made on the Zetasizer Nano.

Polymers can be loosely grouped into two structural categories – linear and branched.

The aim of this guide is to provide the reader with a clear understanding of the different technological approaches used to measure molecular weight by static light scattering in a GPC/SEC experiment.

Work performed in conjunction with the Membrane Protein Laboratory, Imperial College, London

Light scattering detectors play an important role in gel permeation chromatography and size exclusion chromatography (GPC/SEC) analysis because of their ability to directly measure molecular weight distribution. Multi angle light scattering (MALS) detectors are often chosen, in some instances because they provide the most accurate data for the measurement of the radius of gyration (Rg), and in others because they have become an accepted industry standard. The launch of Malvern Instruments’ new Viscotek SEC-MALS 20 detector extends commercial choice in this area and draws the technology into the spotlight.

When and where should we apply the concept of “just enough is best”?

In August, The Analytical Scientist will publish a special issue celebrating the very best images in the field of analytical science. And you have the chance to submit an image that defines your work.

Deeper consideration of individual analytical unit processes offers a more systematic approach to method development, ensuring that we don’t forget the basics in an increasingly sophisticated world.

What has driven spectroscopic techniques into their current prominent position in a plethora of application areas?