Analysis of Linear and Branched Polyethylene Glycols via GPC Viscometry
December 11th 2009Biomedical interest in branched type PEG materials has increased due to their lower viscosity in comparison with equivalent linear type polymers. Investigation of PEGs by GPC can be used to elucidate their relatively compact nature in solution.
Holidays 2009: A Time for Optimism
December 1st 2009For many in the world of chromatography and separation science in general, it has been a long 12 months to say the least. With an economic recession gripping the nation and causing secondary effects such as the well-documented "Great Acetonitrile Shortage of 2009," it is easy to see why many readers will not be sorry to see the end of 2009, and why they will be all too happy to welcome in 2010.