Bivariate Distribution

SGIC 2D


The Two-Dimensional Solvent Gradient Interaction Chromatograph (SGIC 2D) peforms the fractionation of a polymer according to composition by solvent gradient HPCL technique in adsorption mode, followed by a second separation with the GPC/SEC method of the fractions eluted from the first fractionation.

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SGIC 2D

  • Fully automated instrument to measure the composition - molar mass interdependence of complex and functional Polyolefins.
  • Special interest for some polar or low crystallinity Polyolefins.
  • Detection performed in isocratic mode: a linear IR detector can be used instead of a non-linear ELSD. Compatible with molar mass sensitive detectors.
  • No solvents handling, fully automated process, including in-line filtration.
  • Flexible definition of the number of fractions and the solvent gradient profile.
  • Bivariate distribution results presented as contour or 3D surface graphs.
  • Automated analysis of a sequence of samples, with flexibility to use different methods for each one

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