Dual detector provides entry-level access to powerful Biomolecular characterisation

21 Jun 2011

Product news

The Model 270 Dual Detector from Viscotek has been designed to simply add to any existing GPC/SEC system equipped with a concentration detector, instantly converting it into a powerful triple detector system.

The Model 270 Dual Detector is the perfect entry-level system for laboratories looking to make detailed characterisation of biomolecules including polysaccharides, DNA, antibodies, proteins and protein conjugates.

The Model 270 Dual Detector features a proven four-capillary differential viscometer and revolutionary Low Angle Light Scattering (LALS) detector that operate at ambient temperature. The viscometer measures intrinsic viscosity and can be used to determine molecular size (Rh to less than 1nm) and density. The viscometer can also be used to provide additional valuable information on structure, conformation, aggregation and branching. Unlike multi-angle light scattering techniques that can only determine molecular weight by extrapolation, the Model 270 LALS detector measures molecular weight directly and thus is inherently more accurate.


Malvern Instruments acquired Viscotek in January 2008.

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Size Exclusion ChromatographySize exclusion chromatography (SEC) is a liquid chromatographic technique used to separate and identify molecules based on their size, including polymers, proteins, nanoparticles & nucleic acid. SEC is further subdivided into gel filtration chromatography (GFC) and gel permeation chromatography (GPC) when an aqueous or organic mobile phase is used respectively. HPLC-based SEC systems and columns are available for analytical separation alongside SEC spin columns or filters to prep samples for many protocols. Find the best size exclusion chromatography equipment in our peer-reviewed product directory: compare products, check customer reviews and receive pricing direct from manufacturers.ViscometersViscometers are used to measure the viscosity of a fluid. Types of viscometer include rotational, vibrational and falling piston viscometers. Options for viscometers include modular, portable, benchtop and temperature compensation and density measurement features.
Dual detector provides entry-level access to powerful Biomolecular characterisation