The document describes an analysis method for dextran used in cosmetic formulations. The presence of impurities in dextran can be detected by using a chromatographic analysis method combining PL aquagel-OH mixed column and PL aquagel-OH 30 column. The ChemStation GPC data analysis software is used for data processing. The properties of dextran primarily depend on the molecular weight, molecular weight distribution, and impurities.
Dextrans are widely used in pharmaceutical, cosmetics, paint, adhesive, and paper industries. Their properties depend on molecular weight, distribution, and impurities. This document details the analysis of a dextran sample using an Agilent 1100 Series GPC-SEC system equipped with PL aquagel-OH columns to resolve impurities that appear as shoulders in the chromatogram.
The injection volume is set to 100 ul.