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Analysing Resins by Static Headspace GC - 2005/11/28 18:33
Ian is correct on all counts. When I saw HS, I assumed you were only interested in the resin's volatile components. That was my interest in the hot melt glue resin. If the volatile components were not the same batch to batch, the glue would not harden quickly enough to bond the case flaps. I assumed you were interested in the ink resin's volatile components for drying effect. If that is the case, a double run might be the best way to go. The first, at low temperature, 100C, with static head pressure. The second vial I would put in a vaccuum oven at 60C before applying the cap. I would then place it in the HS unit at perhaps 200C and sample with the assistance of nitrogen pressurization of the vial. If you are interested in the resins rather than the volatile components, HS/GC is not the way to go. HPLC might be a another choice to GC. Depending on the resin's composition one of the many HPLC systems should work, normal phase, reverse phase, size exclusion, ion exclusion, etc. Somthing is sure to work. I am positiive that what you need is already in use somewhere. Hopefully, you will not have to re-invent the wheel to complete your project.
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