Wj. Staal et al., ONLINE EXTRACTION OF POLYMERS, OLIGOMERS, ADDITIVES AND MONOMERS BY MULTIPLE SOLVENTS ON PACKED HPLC COLUMNS, Chromatographia, 37(3-4), 1993, pp. 218-220
Extraction of monomers, additives, oligomers, and polymers from a blen
d is very time consuming and labor intensive. Now by use of a special
guard column and multi-solvent gradient liquid chromatograph (HPLC), t
he extraction and analysis can be performed in one step.