An ion chromatog raphic method for the simultaneous analysis of low -g rade fatty acids including formic acid,acetic acid,propionic acid and butyric acid in fruit juice was developed.

• 以邻苯二甲酸氢钾和邻苯二甲酸混合水溶液为淋洗液,用阴离子交换柱直接电导检测,建立了果汁中四种低级脂肪酸同时分析的方法,考察了影响分离的因素。