Engineering Advances in High Temperature GPC Instrumentation
We discuss polyolefins and high temperature GPC in terms of engineering advances.
The first GPC instrument incorporated a pump, an injection valve, a column oven and a RI detector. Quite some engineering ingenuity was required in those days to have a constant flow pump that was particularly required in GPC, where a small change in flow could cause large molar mass errors, and to have a stable RI detector at high temperature (with RI being known to have strong temperature dependency). It is interesting to notice that the very first GPC was targeted at high temperature applications. This certainly showed the importance that the knowledge of the molar mass distribution of polyolefins had in the design of new resins. This leads us on to discuss polyolefins and high temperature GPC in terms of engineering advances.
Best of the Week: Food Analysis, Chemical Migration in Plastic Bottles, STEM Researcher of the Year
December 20th 2024Top articles published this week include the launch of our “From Lab to Table” content series, a Q&A interview about using liquid chromatography–high-resolution mass spectrometry (LC–HRMS) to assess chemical hazards in plastic bottles, and a piece recognizing Brett Paull for being named Tasmanian STEM Researcher of the Year.
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