Retention of aromatic acids on an octadecyl-bonded vinyl alcohol copolymer gel

Add time:08/27/2019    Source:sciencedirect.com

The selectivity of an octadecyl-bonded vinyl alcohol copolymer gel was examined by investigating the chromatographic behaviour of aromatic acids. The energy effect on the retention of aromatic acids was calculated from the result for alkylphenols. This packing was less hydrophobic than octadecyl-bonded silica gels, and the energy effect on the retention of aromatic acids was small compared to the values measured on an octadecyl-bonded silica gel. The correlation coefficient between the energy effects of aromatic acids measured on the octadecyl-bonded vinyl alcohol copolymer and silica gels was 0.972 (n  36). However, this bonded organic packing had more selectivity for the retention of ortho-substituted alkylbenzoic acids.

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