Viscotek's Dual Detector Model 270 is specifically designed to be added to an existing GPC/SEC system equipped with a concentration detector (RI and/or UV), instantly converting it into a triple detector system.
In triple detection, the patented 4-capillary differential viscometer provides a direct measurement of intrinsic viscosity and allows for the determination of molecular size, conformation and structure of synthetic polymers, biopolymers and proteins. The light scattering detector provides a direct measurement of absolute molecular weight and eliminates the need for column calibration.
The Dual Detector is configured with the differential viscometer and a light scattering detector (Low Angle Light Scattering or Right Angle Light Scattering). It is also available as a stand-alone viscometer or light scattering detector. This flexibility allows you to choose the configuration that meets your specific application requirements, insuring superior performance while maximizing the information from your GPC/SEC experiment.
Previously only available on Viscotek's TDA system, LALS detection is now available on an entry-level system. This means that for a wide range of polymers, proteins, peptides and biomolecules researchers can make routine direct determination of absolute molecular weight on the highly affordable Model 270. Unlike multi-angle light scattering techniques that can only determine molecular weight by extrapolation, the model 270 LALS measures molecular weight directly and thus is inherently more accurate.