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Viscotek will show products for characterising polymers, copolymers, biopolymers, proteins and nanomaterials at the American Chemical Society’s Fall Meeting 2009, from 16-20 August in Washington DC.

These include the TDAmax gel permeation chromatography / size exclusion chromatography (GPC/SEC) system, which features an integrated triple or tetra detector array.

As part of this setup, the recently introduced photo diode array (PDA) detector captures absorption spectra across the UV-vis wavelength range, delivering a fingerprint of each ‘time slice’ of the sample as it elutes from the column.

GPC/SEC is a chromatographic technique that separates natural and synthetic polymers, biopolymers and nanoparticles on the basis of size.

When coupled with advanced detectors, a range of additional parameters can be determined.

Viscotek GPC/SEC technology provides absolute molecular weight, molecular size (Rg and Rh) and intrinsic viscosity as well as information on structure, conformation, aggregation, branching, copolymer and conjugate composition.

Delivering a wealth of information from a single experiment, Viscotek’s proprietary technologies encompass: advanced column technology for an extended range of applications; low angle light scattering (LALS), which delivers absolute molecular weight without the need for extrapolation, correction, assumptions or data fits; digital transducer viscometer technology, which improves data accuracy, precision and resistance to corrosive solvents; and photo diode array technology for multi-dimensional GPC/SEC analysis.

Malvern Instruments

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