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    傅立叶变换红外光谱法对聚氯乙烯及邻苯二甲酸酯类增塑剂的快速鉴定

    Rapid Characterization of Polyvinyl Chloride and Phthalate Plasticizers by Fourier Transform-Infrared Spectrometry

    • 摘要: 应用傅立叶变换红外光谱法实现了聚氯乙烯及邻苯二甲酸酯类增塑剂的快速鉴别.对聚氯乙烯的定性采用了衰减全反射技术,用锗作为晶体材料,对邻苯二甲酸酯类的定性则采用透射法.用溶解-沉淀法对试样进行分离和纯化,所用溶剂为四氢呋喃,沉淀剂为无水乙醇.经过此方法,聚合物与增塑剂达到很好的分离和纯化.

       

      Abstract: A method of rapid characterization of polyvinyl chlorid (PVC) and phthalate plasticizers by Fourier transform infrared spectrometry (FT-IRS) was proposed.Detection of PVC was performed by the attenuated total reflection (ATR) technique using germanium as crystal material.Detection of phthalate plasticizers was carried out by the transmission method.Separation and purification of the sample were done by the dissolution and precipitation method using tetrahydrofuran as solvent and absolute alcohol as precipitant.By the method deseribed effective separation of the polymer from the plasticizers was achieved.

       

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