反相高效液相色谱测定对苯二甲酸二乙二醇酯及二聚体

Determination of Diethyl Glycol Terephthalate and Its Dimer with Reversed-Phase High Performance Liquid Chromatography

随着我国化纤工业的飞速发展,聚酯(聚对苯二甲酸乙二酯,商品名称涤纶)废旧料分布极为广泛,包括轻纺、电气、包装、磁带,以及人们的日用生活。从六十年代初至今,国外许多科学工作者从事聚酯废料回收利用的研究。我们对所采用特殊化学方法回收废料,重新制成新聚酯切片的中间体—对苯二甲酸二乙二醇酯及二聚体进行了反相高效液相色谱分离及定量测定。采用内标法和外标法对照实验,其结果令人满意。

A method for the determination of diethyl glycol terephthalate and its dimer by reversed-phase high performance liquid chromatography is described.The operating conditions are Micropak CH-5μ column, methanol-water (70:30) eluent, 0.5ml/min and UV-254nm detection.