The concentration of organic acids and free fatty acids in 12 kinds of Chinese rice wine from different areas were determined by high performance liquid chromatography(HPLC) and gas chromatography(GC). Nine kinds of organic acids and five kinds of free fatty acids were studied further through principal component analysis(PCA). Results showed that the content of lactic acid,acetic acid and citric acid were the most,which accounted for more than 80% of the total organic acids. First four principal components ...