Key Features

The GPC Extension brings the following features to the Clarity station:

  • Evaluation - the same chromatograms can be evaluated both in standard and GPC mode.
  • GPC Integration - separate integration tables for GPC and standard evaluation are used. There are extensive possibilities for modifying chromatograms. The chromatogram can be changed by entering global parameters or interactively, through the direct graphical modification of the baseline.
  • Overlay - simultaneous display of a virtually unlimited number of chromatograms. Molecular weight and cumulative molecular weight distributions can be easily compared.
  • GPC Calibration - Narrow or Broad standard calibration methods (for more details see also chapter Basic principles and terms) combined with flow rate correction and Universal calibration. Multiple broad standards can be used.
  • GPC Results Table - display of molecular weight averages together with peak details for active signal. Multiple peaks can be evaluated from one chromatogram.
  • GPC Summary result tables - display and print of selected results from all simultaneously displayed chromatograms.

The following standard Clarity features will also help the user to make the best of the GPC analysis in Clarity:

  • Measuring - simultaneous data acquisition from up to four 32-detector chromatographs (4×32 configuration).
  • User calculations - the user can define custom calculations in the Result Table and Summary Table. With the use of the integrated editor you can create your own columns from the original ones and use individual mathematical functions.
  • Reports - user selectable report sections, WYSIWYG formatting of Graphs and Tables.
  • Batch - automatic batch processing, display, export or print of any number of chromatograms.
  • Automated measurement support - sequence tables for any set of samples with or without an autosampler.
  • Postrun - automatic display, print, export and start of other programs after completing the measurement.
  • Fraction Collectors - GPC offers support for fraction collectors controlled by Collect/Waste and Next signals.