Ma. Tapsak et al., QUANTITATIVE-DETERMINATION OF COMPLETELY ACETYLATED PENTAERYTHRITOL AND PENTAERYTHRITOL OLIGOMERS BY HIGH-PERFORMANCE LIQUID-CHROMATOGRAPHY, Analytical chemistry, 68(10), 1996, pp. 1685-1687
Analysis of pentaerythritol (PE) and PE oligomer mixtures has been ach
ieved. PE oligomer mixtures are completely and rapidly (15 min) acetyl
ated using acetic anhydride and a catalytic amount of 4-(dimethylamino
)pyridine. A Whatman Partsil-10 C-8 HPLC column resolves acetylated PE
oligomers, which include acetylated penta-PE, with a mobile phase of
acetonitrile/water (1:1 v/v).