2005•China BrewingRequires access
Determination of organic acids in apple vinegar by ion exclusion chromatography
Zhang Qianli
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Abstract
The ion exclusion chromatographic method was proposed for determinatio n of organic acids in apple vinegar.The effects of mobile phase composition,f low rate and column temperature on separation and detection were investigated.T he detection limits of the six organic acids were between 9.17 and 78.0 mg/L,an d the recovery rates of the organic acids except oxalic acid were between 90% an d 110%.Citric acid,DL-malic acid,succinic acid and acetic acid were the main organic acids existed in the apple vinegar.