离子色谱法同时测定水中的甲酸、乙酸、丙烯酸和氯乙酸

建立了离子色谱电导同时检测水中甲酸、乙酸、丙烯酸和氯乙酸的方法,当采用1.0mL/min、1mmol/L KOH淋洗液梯度洗脱时可达到样品中甲酸、乙酸、丙烯酸和氯乙酸分离分析的目的;乙酸、甲酸、丙烯酸和氯乙酸的线性范围分别为0.01～10.0、0.01～20.0、0.01～20.0和0.01～20.0mg/L,检出限分...

Simultaneous Determination of Formic Acid, Acetic Acid, Crylic Acid and Chloroacetic Acid in Water by Chromatography of Ions

A method based on ion chromatography（IC） with conductivity detection was developed for simultaneous determination of formic acid,acetic acid,crylic acid and chloroacetic acid in water.Separation and analysis of formic acid,acetic acid,crylic acid and chloroacetic acid in water could be achieved at conditions of 1.0ml/min and gradient elution with 1mmol/l KOH.The linear ranges of the developed method were 0.01～10.0,0.01～20.0,0.01～20.0 and 0.01～20.0mg/L for acetic acid,formic acid,crylic acid and chloroacetic acid,and the corresponding detection limit were 0.003,0.002,0.003 and 0.004mg/L,the relative standard deviation for 0.05mg/L and 1.00 mg/L mixed standard solutions were good.The spike recovery ranging in 96%～117% was obtained when applying this method to analyze the four organic acids in water.