Gel permeation chromatography apparatus

A gel permeation chromatography apparatus was adapted for use in pumping and fractionating samples in order to study the adsorption characteristics of the XAD-4 quaternary resin in the OH" form. 

Figure 4.24 Schematic diagram of a gel permeation chromatography apparatus.

Figure. 4.18 Schematic layout of a typical gel permeation chromatography apparatus. It is, however, a normal practice to use a set of several columns each packed with porous gel particles having a different porosity, depending on the range of molecular sizes to be analyzed. (Adapted from Allcock and Lampe, 1990.)...

The molecular weight (Mw) of the polycarbonate was measured with a Waters 150 CV Gel Permeation Chromatography apparatus. The samples were dissolved in tetrahydrofuran and, for the reinforced grade, the fibers were removed from the solution by filtration prior to the injection. During the tests the temperature was maintained at 35 °C and polyst)n ene standards were used for the calibration. 

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See also in sourсe #XX -- [ ]

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