DOP紫外吸收值测试方法研究分析

Research and Analysis on the DOP Ultraviolet Adsorption test method

重点对邻苯二甲酸二(2-乙基己)酯(DOP)的紫外吸收值测试方法做了研究分析。采用水为提取介质,在加热条件下,促进DOP中紫外吸收物质溶于水中,经油水分离后,测试DOP水溶出物中紫外吸收值。研究发现,DOP水溶出物在230 nm波长处会有较大吸收,因此判断DOP水溶出物的吸收波长在230 nm。

This paper focuses on the research and analysis of the DOP ultraviolet adsorption test method.Water was adopted as the extraction medium and in the heating condition,the solubility of UV absorbing substances in DOP was promoted in water-After oil-water separation,the ultraviolet adsorption values were measured in DOP water soluble substances.The research found that the water-soluble DOP has a strong absorption at 230 nm,from which the absorption wavelength of DOP is estimated to be 230 nm.