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_aPJS 3
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_aPhilippine Journal of Science
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245 0 _a
_aDetermination of mixtures of carboxylic acids and selected inorganic anions by ion-exclusion chromatography.
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_3
_aTaguig, Metro Manila :
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_bSTIII-DOST :,
_c199746
300 _e
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_atables, illus. :
_b10 refs.
310 _a
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321 _a
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336 _b
_atext
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337 _3
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_aunmediated
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338 _3
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_a0
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_aJan.-Mar. 1997 / volume 126, number 1
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_aABSTRACT : Mixtures of aliphatic carboxylic acids and iorganic 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 eleunts were found to be suitable for the determination of mixtures of aliphanic carboxylic acids and inorganic anions.
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_xChromatography.
_aChemical and allied sciences
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_zCarboxylic Acids
_yInorganic Anions
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_y20
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655 _0
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_aMagyani, Ofelia F.
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_aPhilippine Journal of Science (126)1 : 1997. pp.19-50.
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