Abstract:In this paper,a method for simultaneous determination of six kinds of organic acids in grapes was proposed.The organic acids including monoprop,butyric acid,lactic acid,acetic acid,citric acid,tartaric acid,lactic acid were analyzed by means of ion chromatography using a gradient elution.The results showed the reliability of the IC method.Under favorable chromatographic conditions,good linear relationship,sensitivity and reproducibility were obtained.