Retention of Phenols on an Octadecyl-Bonded Vinylalcohol Copolymer Gel

Abstract

The chromatographic behavior of phenols was studied on an octadecyl-bonded vinylalcohol copolymer gel in acidic acetonitrile/water mixtures. The energy effect of phenols was measured on octadecyl-bonded silica gels where the values of alkylbenzenes were used as the standard instead of polyaromatic hydrocarbons. The selectivity within their isomers was larger on the octadecyl-bonded vinylalcohol copolymer gel than that measured on octadecyl-bonded silica gels. The correlation coefficient between the energy effects of phenols measured on the octadecyl-bonded vinylalcohol copolymer gel and those measured on an octadecyl-bonded silica gel was 0.685 (n=13) for alkylphenols and 0.392 (n=20) for halogenated phenols due to the selectivity of the vinylalcohol copolymer gel. Halogenated phenols were retained more on the organic polymer gel, and the average value of the energy effects was 50% less than the values obtained on the inorganic gel.