A new standard in Dynamic Light Scattering instrumentation

Viscotek, specialists in multi-detector characterisation of proteins, polymers and nanoparticulate materials, has announced the launch of a ground breaking new generation of its popular Model 802 Dynamic Light Scattering (DLS) instrument.

With performance advantages born out of Viscotek's exclusive single mode fibre technology, and a host of exciting new technical innovations, the new generation Model 802 sets a new standard in DLS.

Traditionally laboratories faced with analysing higher concentration samples, such as emulsion or nanoparticles, have found traditional light scattering instruments limited both in terms of sensitivity and resolution. To address these deficiencies Viscotek developed as an option for its new generation system - Dual Attenuation Technology. Dual Attenuation Technology (DAT) is a unique technique that controls the level of light entering the sample as well as controlling scattered light going to the detector. In this way, for the first time, researchers are able to work at the optimum conditions for the laser and detector irrespective of sample type. In combination with OmniSIZE 3.0 software the new generation Model 802 DLS with DAT is able to automatically adjust the instrument to its optimum setting sample by sample. From 100% transmission for the maximum sensitivity right down to 0.0001% transmission for concentrated samples - a dynamic range of 106.

Further innovations introduced on the new Model 802 DLS include a 544-channel correlator that provides, as standard, industry leading resolution and distribution accuracy. In addition to operating up to 90°C the new instrument now incorporates digital sensors that provide automatic environmental control as well as real-time humidity and dew point information.

Designed for laboratories that need a complete understanding of how their protein, biopolymer or nanoparticulate material behaves in solution the new ergonomically designed Model 802 DLS sets a new standard for superior sensitivity, resolution, accuracy and sampling versatility compared to any other light scattering instrument currently available.

Malvern Instruments acquired Viscotek in January 2008.