我课题组的人主要用离子色谱,我用气相的。所以条件是他们设定好的,他们主要测定甲酸和乙酸。所以,测定甲酸一定可以。条件如下;The organic acid ions resulting from the MTBE degradation were identified by ionic chromatography. (IC; Dionex Dx-1500) with an Ion Pac AS-14 column, and an aqueous solution of Na2CO3 : NaHCO3 = 3.5 mmol L-1 : 1.0 mmol L-1 was used as the mobile phase, with a flow rate of 1.0 ml/min. 这个也是通过测定阴离子测定小分子酸。你的离子色谱,应该能测定吧?