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CHROMATOGRAPHY 37


gas mixtures, with special emphasis given to the analysis of natural gas. Scion’s gas analysers are


standard turnkey systems, pre-confi gured and tuned at the factory to ensure their compliance with standard methods used to determine the heating value of natural gases and related streams. T is new chromatograph confi guration is an addition to Scion’s existing range of analysers.


Gel permeation Gel permeation chromatography (GPC), a type of size exclusion chromatography (SEC), is a powerful and versatile analytical technique for understanding and predicting polymer performance. UK-based company Malvern has just


added the Sec-Mals 20 detector to its new Omnisec SEC/GPC system; this enhancement measures absolute molecular weight and comes into its own in the analysis of proteins and larger macromolecules, such as synthetic bulk polymers, natural polymers like lignin and pectin and the proteins that are the focus of much biopharmaceutical drug development. Global Swiss Agribusiness


Syngenta uses an Omnisec for the analysis of the polymeric components of agrochemicals including dispersants, wetting agents, viscosity/rheology modifi ers, buff ering agents and anti-foaming agents. In the pharmaceutical fi eld


the Omnisec aids in targeted delivery of Doxorubicin (Dox), an anti-cancer drug.


www.scientistlive.com


Malvern’s new Omnisec system features the Sec-Mals 20 detector


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