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Dete rmination of Mixtures of Carboxylic Acids and Selected Inorganic Anions By Ion-Exclusion Chromatography. 6 6 - - - 19 - 50p. tables, illus., 10 refs. - Quarterly. - - - January - March 1997 / volume 126, number 1 - . - . - 0 . - . - 0 .

ABSTRACT: Mixture of aliphatic carboxylic acids and inorganic anions were determined by ion- exclusion chromatography. A range of sulfonic acid eluents were examined using UV absorption and conductivity detection. Of the eluents studied , sodium octanesulfonate proved to be the optimum. The aliphatic carboxylic acids were found to elute in the order of increasing carbon number. The retention of these solutes was controlled by a combination of ion-exclusion through the Donnan potential and hydrophobic interactions.detection limits obtained were in the range of 0.71-100 ppm. sulfonic acid eluents were found to be suitable for the determinations of mixtures of aliphatic carboxylic acids and inorganic anions.;Local publication.





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ISSN: 0031-76832 = Philippine Journal of Science =

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Chemical and Allied Sciences.;Inorganic Anions ----Carboxylic Acids.--Chromatography.----

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LC Class. No.: Q75 .P538 / 2

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