Gel Permeation Chromatography (GPC), abbreviated as GPC, utilizes the differential elution time of molecules of various sizes through a gel column to separate molecules of different molecular weights in high polymers. The intensity and elution time of each eluted component are measured using a refractive index detector. By comparing the elution time of unknown samples with the standard curve of known standard materials in terms of elution time and molecular weight, the molecular weight and molecular weight distribution of each eluted component of the unknown sample can be determined.
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