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Powerful, yet easy-to-use tool for characterisation of natural and synthetic polymers

Malvern Panalytical
6 May 2011
Greg Smith
Analyst / Analytical Chemist

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The RImax™ Gel Permeation / Size Exclusion Chromatography (GPC/SEC) system from Viscotek is a powerful, yet easy-to-use tool for the conventional characterisation of natural and synthetic polymers, copolymers, proteins, nanoparticles and other macromolecules.

Combining the market leading GPCmax™ fully integrated pump, autosampler and degasser module, Model 3580 Refractive Index (RI) detector and OmniSEC GPC/SEC software the RImax delivers all the attributes of a high performance Conventional GPC system.

The Viscotek Model 3580 Differential RI Detector sets the standard in GPC for the determination of sample concentration. It combines superior sensitivity and versatility with reliability, ease-of-use and excellent linearity over a wide range of concentrations.

The GPCmax features a variable injection volume autosampler capable of handling all types of 2ml vials and an isocratic pump for constant and pulseless solvent flow. The pump and autosampler can be programmed manually using the instrument front panel or can be fully controlled by Viscotek OmniSEC(TM) software. OmniSEC is a fully 21CFR part 11 compliant GPC/SEC software package and provides an integrated software solution that helps maximise the information extraction and efficiency of polymer characterisation experiments. Equipped with an in-line solvent degasser to remove dissolved gases the GPCmax ensures optimum performance of concentration, viscosity and light scattering detectors. Benefiting from Viscotek's experience of providing leading edge solutions for polymer characterisation, the GPCmax delivers the superior performance you would expect from an optimised system. The GPCmax has also been engineered to ensure high reliability at an affordable price.


Malvern Instruments acquired Viscotek in January 2008.

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UHPLC and HPLCHigh performance liquid chromatography (HPLC) and ultra high performance liquid chromatography (UHPLC), also known as UPLC, are analytical techniques used to separate, identify and quantitate components of complex mixtures including biological samples such as proteins and lipids as well as chemical mixtures of pesticides, drugs and oils. Both techniques are liquid chromatographic methods but differ by operating pressures (HPLC < 6000 psi < UHPLC ). Components of HPLC and UHPLC systems include columns, detectors, pumps, autosamplers and column heaters. Explore a range of UHPLC and HPLC columns for your specific sample needs including reverse phase, normal phase, ion exchange, HILIC, ion exclusion and size exclusion columns. For more specialized HPLC, explore FPLC, countercurrent LC and simulated moving bed systems. Find the best UHPLC and HPLC equipment in our peer reviewed product directory: compare products, check customer reviews and receive pricing direct from manufacturers.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.Particle CharacterizationParticle characterization instruments are used to determine particle size distribution, shape, surface area, zeta potential, density and porosity of particles and materials. Multiple tecchniques are available for determining particle size, shape and count including dynamic light scattering (DLS), laser diffraction, electrozone (Coulter technique), imaging particle analysis and single particle optical sensing. Determine the density of your material with a gas pycnometer or examine its surface area and porosity with gas adsorption analyzers and mercury porosimeters. Find the best particle characterization instruments in our peer-reviewed product directory: compare products, check customer reviews and receive pricing direct from manufacturers.

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Powerful, yet easy-to-use tool for characterisation of natural and synthetic polymers