本文介绍了一种简便快速测定水中微量氯乙酸方法。它是通过2,4-二氟苯胺和二环己基二亚胺与水中氯乙酸反应,生成二氟酰苯胺衍生物,并用乙酸乙酯萃取,最后用带有电子捕获检测器的气相色谱仪分离测定氯乙酸含量。试剂和材料一氯、二氯、三氯乙酸标准溶液:1000μg/ml。二氟苯胺和二环己基二亚胺的乙酸乙酯溶 This article describes a simple and rapid method for the determination of trace amounts of chloroacetic acid in water. It is produced by the reaction of 2,4-difluoroaniline and dicyclohexyl-diimine with chloroacetic acid in water to produce a difluoroanilide derivative which is extracted with ethyl acetate and finally separated by gas chromatography with an electron capture detector Determination of chloroacetic acid content. Reagents and materials Chlorine, dichloride, trichloroacetic acid standard solution: 1000μg / ml. Difluoroaniline and dicyclohexyl diimine were dissolved in ethyl acetate