Gel Permeation Chromatography System automates sample filtering.
August 17, 2011 -
Utilizing autosampling device and heated multivial stirrer that dissolves and automatically injects sample, Viscotek HT-GPC is specified for safe operation at temperatures up to 160įC, which is necessary for analyzing polyethylene and polypropylene. Triple detector configuration includes refractive index, viscometry, and low angle light scattering detection, enabling measurement of absolute molecular weight, molecular weight distribution, and polymer chain branching in single experiment.
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|Original Press release |
Malvern Instruments Inc.
117 Flanders Rd.
Westborough, MA, 01581
Malvern Automates Sample Filtering for Safety and Productivity in Demanding High Temperature GPC Applications
Malvern, UK: Bringing fully automated, state-of-the-art GPC technology to the polyolefin industry, the Viscotek HT-GPC (high temperature gel permeation chromatography) system from Malvern Instruments is detailed in a new brochure available on the company's website.
The Viscotek HT-GPC system requires no user interventions for sample filtering and is uniquely specified for safe, routine operation at the high temperatures (160oC) necessary for analyzing polyethylene and polypropylene. It measures absolute molecular weight, molecular weight distribution, and polymer chain branching in just a single experiment. These are critical parameters for polyolefins that influence in-use properties such as strength and permeability.
Although GPC is a well-established and valued technique for polymer analysis its use with polyolefins is hampered by their sparing solubility in so many solvents. High temperature operation is essential, increasing the risks associated with hazardous solvent use. Fully automated, and with excellent temperature control up to 160oC, the HT-GPC is safe, accurate and productive.
With GPC the detectors used to characterize the sample, as it elutes from the separation column, dictate what information is gathered during each experiment. The full Viscotek HT-GPC triple detector configuration includes refractive index (RI), viscometry and low angle light scattering (LALS) detection. Together these detectors provide absolute molecular weight without extrapolation or correction, molecular size, intrinsic viscosity and branching information. Three alternative detector configurations are also available: RI alone, RI and LALS, and RI and viscometer.
The Viscotek HT-GPC has a modular design that enhances flexibility, reliability and ease of maintenance. All configurations use the new Vortex autoprep/autosampler for sample preparation and delivery. This unit consists of an integrated autosampling device and heated mulitvial stirrer that dissolves and automatically injects the sample, eliminating the need for manual hot sample transfer.
Advanced OmniSEC software drives the new system. OmniSEC has full polymer branching calculations capability and an intuitive Branching View function that simplifies the study of long chain branching.
Further details of the features and benefits of the Viscotek HT-GPC are brought together in the product brochure which can be downloaded at: http://www.malvern.com/HTGPC
Malvern, Malvern Instruments and Viscotek are registered trademarks of Malvern Instruments Ltd
About Malvern Instruments
Malvern Instruments is a market leader in measuring performance controlling material properties. These include particle size, particle shape, zeta potential, molecular weight, size and conformation, rheological properties and chemical distribution. Malvern delivers the systems, support and expertise that ensure the analytical integrity and productivity needed to drive research, development and manufacturing.
Malvern's measurement solutions for scientists, technologists and engineers advance continually through customer collaboration. Complementary materials characterization systems deliver inter-related measurements that reflect the complexities of particulates and disperse systems, nanomaterials and macromolecules. Combining intelligently implemented technologies with in-depth industry applications knowledge and support, Malvern provides customers with the competitive advantage they demand.
Headquartered in Malvern, UK, Malvern Instruments has subsidiary organizations in all major European markets, North America, China, Korea and Japan, a joint venture in India, a global distributor network and applications laboratories around the world. www.malvern.com
Marisa Fraser, Malvern Instruments Inc.
117 Flanders Road, Westborough, MA 01581-1042 USA
Tel: +1 508 768 6400
Fax: +1 508 768 6403
Please send sales enquiries to:
Alison Vines, Malvern Instruments Ltd
Enigma Business Park, Grovewood Road, Malvern, Worcestershire WR14 1XZ UK
Tel: +44 (0) 1684 892456
Fax: +44 (0) 1684 892789