Gel permeation chromatography of low molecular weight materials with high efficiency columns

Characterization of low molecular weight polymers by liquid chromatography and field desorption mass spectroscopy

“…After purification of the monomer, the TMDQ may be polymerized to form a resinous product (poly-TMDQ). The structure of the TMDQ dimer has been determined by ul- Separation of TMDQ oligomers by gel permeation chromatography (GPC) (15,16) and liquid chromatography (4) has recently been reported. EXPERIMENTAL Liquid Chromatography.…”

Combination of size exclusion and normal-phase partition modes in high performance liquid chromatography

“…Recent improvements in high performance size exclusion chromatography (SEC) (conventional GPC) have advanced the separation of low molecular weight materials (1). Polystyrene gels with small pore and particle sizes permitted the complete separation of n-alkanes (I), phthalate esters (2), alkylbenzenes (3), oligostyrenes (4), and various other materials.…”

Novel mechanism for the Nafion membrane transfer of anthraquinones

“…It has been shown previously that hydroquinones elute from gel permeation columns earlier than their molecular weights would suggest [9]. It was stated in this paper that this is possibly due to the association of hydroquinone hydroxyl groups with the solvent.…”