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Liquid Chromatography of Benzoic Acid and Phthalic Acid on Ion‐Exchange Resin
Author(s) -
Hsu TongJung,
Liao ChiChow,
Chen MeiYun
Publication year - 1978
Publication title -
journal of the chinese chemical society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.329
H-Index - 45
eISSN - 2192-6549
pISSN - 0009-4536
DOI - 10.1002/jccs.197800036
Subject(s) - chemistry , benzoic acid , phthalic acid , chromatography , elution , ion exchange resin , ion exchange , ion chromatography , ethanol , solvent , aqueous solution , phase (matter) , ion , organic chemistry
This is to report a study in which cation ion‐exchange resin serves as the stationary phase for liquid chromatography of benzoic acid and phthalic acid and aqueous ethanol acts as the mobile phase. No ion. exchange phenomenon is involved. It is rather a solvent action on the polymer matrix for the organic solutes. It was found that the elution volumes depend on the pKa values of the acids; the higher the pKa value the more the retention volume.