Size Exclusion Chromatography (SEC)

Brand

Agilent 1260 Infinity-II
Eluent
Dimethyl Formamide (DMF)
Hexafluoroisopropanol (HFIP)
Tetrahydrofuran (THF)
Water (H2O)
Temperature range
40 – 80 °C
Detectors
Refractive index (RI)
Sample size
2 mg
Output
Average molecular mass
Dispersity

SEC (or GPC) is used to determine the average molecular mass (Mw and Mn) and the dispersity (Mw /Mn) of polymers. These characteristics have a strong influence on the mechanical and thermal properties of the material. The results of a SEC measurement can therefore be useful in assessing processing parameters. Molecular masses are calibrated versus monodisperse polymer standards.

Size Exclusion Chromatography (SEC) Characterization.