A practical alternative to preparative fractionation methods - Polymer Char's analytical SGIC 2D instrument is now able to measure composition - molar mass interdependence in hours instead of days, with limited solvent consumption and no manual intervention, in an intrinsically safe setup.
The Two-Dimensional Solvent Gradient Interaction Chromatograph (SGIC 2D) instrument performs a fractionation of the polymer according to composition by solvent gradient HPLC technique in adsorption mode followed by a second separation by Gel Permeation Chromatography (GPC/SEC) of the fractions eluted from the first dimension.